1. chemistry

    How many dots should be indicated in the electron dot structure of arsenic? How many electrons are in the highest energy orbital of the element copper?

    asked by Ciaria on March 3, 2015
  2. chemistry

    what is the angular momentum quantum number for the orbital from which an Mg atom loses two electrons to form Mg2+ ion.

    asked by kb on July 20, 2011
  3. Physics

    Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

    asked by Maria on March 7, 2011
  4. chem

    in the ground state electron configuration of Fe3+, how many unpaired electrons are present? I thought it was 1, but im getting a wrong answer.

    asked by natash on November 1, 2008
  5. CHemistry

    Which one of the following is expected to be the strongest Lewis acid? Fe, Fe+, Fe2+, Fe3+ Which do you think would accept electrons the easier? Fe(s) or Fe^+? Do that same kind of logic on the others one by one.

    asked by Joel on April 27, 2007
  6. Chemistry

    List the sets of quantum numbers which describe all of the electrons possible in a 6p wave function (orbital): I'm really having trouble figuring this out!

    asked by Nicole on November 30, 2011
  7. Chemistry

    The part of an electrochemical cell that carries electrons to a reacting ion is a(n) (1) cathode (2) anode (3) electrode (4) electrolyte

    asked by Brian on April 22, 2014
  8. Physics

    Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

    asked by Maria on March 7, 2011
  9. chem

    what is the symbol for the element that has 78 protons 76 electrons 117 neutrons and a +2 net charge? i thought it was ^195Os^+2 but that is wrong. Thanks for the help!

    asked by sara on August 25, 2012
  10. chemistry

    Silver is electroplated at the cathode of an electrolysis cell by the half reaction Ag+(aq) + e- --> Ag(s) How many moles of electrons are required to electroplate 5.8g of Ag?

    asked by Monique on November 25, 2011
  11. science

    describe the relationship between an element's placement in the periodic table and the number of electrons in its outermost energy level

    asked by j on January 10, 2010
  12. Chemistry

    15. When chromium loses two electrons, its configuration changes to A. [Ar]4s1. B. [Ar]3d4. C. [Ar]4s13d5. D. [Ar]4s13d4. I'm guessing it's B but I just want to double check

    asked by Hannah on August 7, 2013
  13. physics

    If we wanted a block of iron of mass 3.25 kg to acquire a positive charge of 0.100 C, what fraction of the electrons would we have to remove?

    asked by anna on September 12, 2012
  14. Physics

    Calculate the net charge on a substance con- sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer in units of C.

    asked by Maria on March 7, 2011
  15. Int. science

    Which of the following is an example of a cycle theme in science? seasons electrons and protons the solar system relationship between plants and animals

    asked by Mclovin on October 2, 2014
  16. math

    Chicago, Illinois has a longitude of 88 degrees West and a latitude of 42 degrees North. Indianapolis, Indiana is located at 86 degrees West and 40 degrees North. At this longitude/latitude, each degree is about 53 miles. What is the distance between

    asked by Sammi on January 23, 2012
  17. science

    write an account that considers what conditions would be required on an earth-like extrasolar planet for the carbon based life to evolve. In your answer you must keep in mind what is thought to have happened on earth, and you must: according to this i have

    asked by kat on May 19, 2007
  18. History

    Hello can anyone help me with this question . It will be greatly appreciated . analyze an economic and political activity in the Caribbean South America since its independence. Include at least one example os an economic activity and one example of a

    asked by ... on February 6, 2017
  19. PHYYYYYSICS 4

    A plane points its nose due north and flies at a speed of 71 m/s relative to the air. The plane enters a strong wind that blows at a speed of 23 m/s due west relative to the ground. What is the angle of the plane's trajectory according to an observer

    asked by Carissa on September 18, 2014
  20. Physics

    1.) The earth's radius is about 3956.52 mi. An object that has a mass of 20 kg is taken to a height of 160 km above the earth's surface. a. What is the mass of the object at this height? b. How much does the object weigh at this height?

    asked by YESHA on August 22, 2014
  21. social studies PLEASE CHECK

    1. which is an event of the progressive era enacted by the local government in South Carolina? a. the first grange chapter was established for farmers b. the grandfather clause gave poor whites the right to vote c. blacks were disfranchises through a poll

    asked by what on May 6, 2014
  22. IPC

    The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. How much will an object, which weighs 98 newtons on the surface of Earth, weigh on this point? The value of acceleration due to gravity

    asked by sam on January 11, 2017
  23. Physics

    The value of acceleration due to gravity (g) on a point 10,000 kilometers above sea level is about 1.49 meters/second2. How much will an object, which weighs 98 newtons on the surface of Earth, weigh on this point? The value of acceleration due to gravity

    asked by Dave on July 4, 2012
  24. Social Studies

    Here ya go Ms. Sue 1:Place the following events in order. The Battle of Yorktown begins. The Continental Congress meets in Philadelphia. The Declaration of Independence is signed. The French and Indian War ends. 2:Which of the following are the leading

    asked by Mattt on October 14, 2018
  25. physics

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1100 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by Anonymous on September 2, 2010
  26. physics question

    Due to electric effects on the earth and in the atmosphere, there is an electric field near the earth's surface that points down. Assuming the electric field is uniform with a magnitude of 150 N/C, what charge would a 145g baseball need to float as though

    asked by anonymous on February 22, 2018
  27. Physics

    A spy satellite is in circular orbit around Earth. It makes one revolution in 6.01 hours. (a) How high above Earth's surface is the satellite? [Answer in Km] (b) What is the satellite's acceleration? [Answer in m/s^2] I see this posted over and over again

    asked by Brenda on September 29, 2012
  28. History

    Almost from the beginning of his administration, Lincoln was pressured by abolitionists and radical Republicans to issue an Emancipation Proclamation. In principle, Lincoln approved, but he postponed action against slavery until he believed he had wider

    asked by Anonymous on December 18, 2018
  29. physics

    A satellite with a mass of ms = 7.00 × 103 kg is in a planet's equatorial plane in a circular "synchronous" orbit. This means that an observer at the equator will see the satellite being stationary overhead (see figure below). The planet has mass mp =

    asked by Anonymous on October 17, 2013
  30. Math

    The ratio of South American butterflies to European butterflies is 3:2. There are 18 South American butterflies at the park. How many European butterflies are there?

    asked by Makenzey on November 18, 2014
  31. Chemistry

    a) How many moles of atoms are in 7.00 g of 13C? Answer "0.538" mol 13C b) Based on your answer in Part A, calculate the number of atoms in this amount of 13C? Answer "3.24×10^23" 13C atom c) Based on your answer in Part B, how many electrons are in this

    asked by katie on August 25, 2018
  32. History

    (PLEASE ANSWER ASAP) Which of these actions did President Lincoln take at the beginning of the Civil War? Answers: He declared martial law throughout the nation. He imprisoned congressional representatives from the South. He issued a declaration of war

    asked by T on February 28, 2018
  33. physics

    At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

    asked by please help on March 11, 2016
  34. physics

    At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

    asked by lizbeth on March 10, 2016
  35. Maths

    an astronaut is to be fire into an elliptical orbit about the eathr having a minimum altitude of 800km and maximum altitude of 5400km find the equation of the curve followed by the astronaut cosider the radius of the earth to be 6400km

    asked by Anonymous on January 6, 2019
  36. alegebra

    1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where

    asked by linda on September 13, 2010
  37. Check My Work Social Studies, Ms. Sue, Reed, Please

    1. Geographers use the five themes of geography to (2 points) study world history. organize information. study world music. measure locations.• 2. People invented flat maps because globes cannot show (2 points) names of continents. shapes of

    asked by Sam on November 20, 2015
  38. Social Studies, Ms. Sue, Reed, Check My Work

    1. Geographers use the five themes of geography to (2 points) study world history. organize information. study world music. measure locations.• 2. People invented flat maps because globes cannot show (2 points) names of continents. shapes of continents.

    asked by Sam on November 24, 2015
  39. Physics

    A plane flies from base camp to lake A, a distance of 300 km at a direction of 20.0° north of east. After dropping off supplies, the plane flies to lake B, which is 210 km and 30.0° west of north from lake A. Graphically determine the distance and

    asked by James on September 10, 2011
  40. physiscs

    if the largest mass that you could lift on earth is 150 Kg. What is the largest mass you could lift on the moon. My work 150kg/10NKg x/1.6Nkg on earth on the moon =24 kg on the moon

    asked by mickalia on September 6, 2014
  41. science

    Mars is 48 million miles from earth. If a spaceship leaves Earth traveling toward Mars at 6 million miles per hour (m.p.h.). How long will it take the spaceship to arrive on Mars.

    asked by joscelyn on October 19, 2010
  42. Math - Algebra

    If a man wewighs 41 newtons (N) on the surface of the earth while he weighs 81.5N on the surface of the moon, approximately how much lighter is he on the moon? What would be his weight on the surface of the earth if he weighs 90 N on the surface of the

    asked by McKenna Louise on November 11, 2013
  43. Physics

    A man walks the distance of 8km in a direction of 20degrees east the walks another 6km in a direction 50degrees south east. Using vector diagrams find the magnitude and direction of the final displacement relative to the starting point.

    asked by Tom on October 5, 2016
  44. physics

    Two racing boats set out from the same dock and speed away at the same constant speed of 119 km/h for half an hour (0.500 h), the blue boat headed 26.8° south of west, and the green boat headed 41.4° south of west. During this half-hour (a) how much

    asked by molly on September 28, 2015
  45. Math-geometry

    . If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles.

    asked by PLEASE HELP on March 9, 2013
  46. Geometry

    a. If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles.

    asked by PLEASE HELP on March 5, 2013
  47. help help help

    The asteroid belt between Mars and Jupiter consists of many fragments (which some space scientists think came from a planet that once orbited the Sun but was destroyed). (a) If the center of mass of the asteroid belt is about 2 times farther from the Sun

    asked by Teri D on October 9, 2006
  48. physics 12

    If the Earth has a mass of 5.98*10^24 kg and orbits the Sun at a radius of 1.43*10^11 meters. Find the mass of the Sun. Thank you.

    asked by roy on October 7, 2011
  49. WORLD GEOGRAPHY LESSON 2

    the native people of australia are known as the word ayatollah means the worlds leading coffee exporter is the european country sometimes known as the hexagon is which canadian province is primarily french-speaking? the britain of the south is another name

    asked by JESSIE on April 12, 2009
  50. Chemistry

    One more problem with 1/2 reactions Pb(s) + PbO2(s) + 2H2SO4(aq)->2PbSO4(aq)+2H2O(l). How do you split them up with two Pb solids on the same side of the equation? Again you need to identify what is being reduced and what is being oxidised. I think I read

    asked by amy on April 19, 2007
  51. maths

    Iam stuck with this question.Please anyone help me. An airplane is flying at an altitude of 10,000m.The pilot sees two ships A and B.Ship A is due south of P and 22.5km away(in a direct line).Likewise ship B is due East and 40.8km from P. The height is

    asked by Shane on April 6, 2013
  52. Social Studies

    PLEASE CHECK THESE MS. SUE!!!!!!!!! 2. How did Captain John Smith's leadership save the settlement at Jamestown? a. He led the settlers in finding large quantities of gold and silver. b. He threatened to send any settler who refused to work away from

    asked by Ms. Sue PLEASE help me!!! on October 20, 2015
  53. Social studies

    How was the South Carolina constitution of 1868 different from previous state constitutions? A) women lost their right to own property B) representation was based on population alone.******* C) counties and distracts were organized Into parishes. D)

    asked by Help please on March 1, 2016
  54. Geography

    24. The South African government changed its policy of apartheid in 1990 and 1991 because of a. the policy's failure to eliminate racial discrimination b. promises of economic aid from major industrial nations c. international sanctions and an increase in

    asked by y912f on March 20, 2010
  55. Explanation for calc. answer

    I don't know how to answer this: A vector can be used to represent the path of a drill tip used to bore a deep mine shaft in Sudbury one quarter of the way to the centre of the Earth. Represent the vector using a directed line segment and Cartesian

    asked by Derek for drwls! on July 7, 2008
  56. URGENT: Calculus

    I don't know how to answer this: A vector can be used to represent the path of a drill tip used to bore a deep mine shaft in Sudbury one quarter of the way to the centre of the Earth. Represent the vector using a directed line segment and Cartesian

    asked by Derek for drwls! on July 6, 2008
  57. Physics

    A rocket lifts off its launching pas with a vertical velocity of 20. m/s and a horizontal velocity of 60. m/s. What are the magnitude and direction of its resultant velocity? I drew the x and Y axis. 20 m/s on the Y axis and 30 m/s on the X axis. I know I

    asked by Aya on October 14, 2014
  58. Art

    1. I sit on the bank in my special place, 2. Feel the breeze that lifts my hair, 3. And watch the ripples run across the river. 4. It is so peaceful here. 5. Deep enough to justify a fishing pole, 6. Quiet enogh for my every thought, 7. The perfect place

    asked by #FreeGucci on March 7, 2016
  59. physics

    Two canoeists start paddling at the same time and head toward a small island in a lake. Canoeist 1 paddles with a speed of 1.40m/s at an angle of 45 degrees north of east. Canoeist 2 starts on the opposite shore of the lake, a distance of 1.5 km due east

    asked by Marissa on September 24, 2014
  60. Science

    How would a geologist identify an igneous rock as intrusive? A. An intrusive rock has coarse grains because it cooled more slowly on the surface of the earth. B. An intrusive rock has coarse grains because it cooled more slowly beneath the surface of the

    asked by Anonymous on January 29, 2015
  61. physicss

    A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1 /6 g. Find the reading of the

    asked by MIKE on January 25, 2013
  62. PHYSICS!!!!HELP PLEASE

    A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1 /6 g. Find the reading of the

    asked by MIKE on January 25, 2013
  63. PHYSICS *_* HELP PLEASE

    A spring scale being used to measure the weight of an object reads 17.1 N when it is used on earth. The spring stretches 4.40 cm under the load. The same object is weighed on the moon, where gravitational acceleration is 1 6 g. Find the reading of the

    asked by MIKE on January 25, 2013
  64. Science

    The total amount of ice in the Greenland ice sheet is estimated to be 2.85 million cubic km. Assume the Earth's surface is 70% covered by ocean, and that the Earth's radius is 6300 km. How many meters would sea level rise if the entire Greenland ice sheet

    asked by Bane Havoc on March 19, 2014
  65. Algebra

    Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets,

    asked by Vickie on March 1, 2012
  66. physics

    On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 25 m/s at an angle 24 ∘

    asked by raquel on October 1, 2015
  67. check geo

    The mountains on the western edge of south america are the: A)sierra madre b)rocky muntains c)andes d)western highlands my ans. Andes Latin America includesmiddle america the carribean and: A)mexico B)el salvador c)cuba D)south america my choose The

    asked by henry on August 19, 2009
  68. physics

    The weight of an object on the moon is one-sixth of its weight on the Earth. The ratio of the kinetic energy of a body on the Earth moving with speed V to that of the same body moving with speed V on the moon is:

    asked by Jazo on April 19, 2011
  69. physics

    Calculate the distance between the center of the earth and the center of the moon at which the gravitational force exerted by the earth on an object is equal in magnitude to the force exerted by the moon on the object.

    asked by Cali on February 23, 2015
  70. Math BOBPURSLEY HELP HELP HELP HELP

    Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 Please answer

    asked by Dwayne on May 2, 2011
  71. Math And Physics

    Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 Please answer

    asked by Dwayne on May 1, 2011
  72. MATH HELP

    Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is neglected. The gravitational constant for g is, G = 6.67428*10^-11 m^3 Kg^-1 s^-2 Please answer

    asked by Dwayne on May 2, 2011
  73. geography

    Can you check my answers please? 1. Which continents do not cross the equator? North America, Europe, Australia, and Antarctica 2. What two parallels form the boundaries of the "tropics" or low latitudes? The 23 degree 50 N line and the 23 degree 50 S line

    asked by Reed on October 21, 2012
  74. Math

    Two cars, car X and car Y , start moving from the same point P on a cross intersection. Car X is travelling east and car Y is travelling north. Some time later car X is 60 km east of point P and travelling in an easterly direction at 80 km/h and car Y is

    asked by R on December 20, 2016
  75. physics

    In the Millikan oil drop experiment, an atomizer (a sprayer with a fine nozzle) is used to introduce many tiny droplets of oil between two oppositely charged parallel metal plates. Some of the droplets pick up one or more excess electrons. The charge on

    asked by James on January 24, 2010
  76. Biology

    In 1999, Beverly Strassman published a study of menstrual cycling among the Dogon women in Mali. What did she find? Using her study results, what methods can you suggest reducing breast cancer in North American women who will have no children or very few

    asked by Jason on May 7, 2009
  77. trig

    A plane is flying with an airspeed of 150 miles per hour and heading 155°. The wind currents are running at 25 miles per hour at 160° clockwise from due north. Use vectors to find the true course and ground speed of the plane.

    asked by janice on November 16, 2012
  78. Geography (Ms. Sue)

    1). Why is the Unites States a leader in agricultural products? 2). How has the economy of the South changed? 3). How has U.S. population shifted since the country began? My answers to these questions are the following: 1). The United States is a leader in

    asked by Anonymous on September 13, 2013
  79. english

    The lines "Some for the Glories of This World; and some/Sigh for the Prophet's Paradise ot come" in rubá'i #13 mean a. some people believe that heaven is to be found on earth b. somepeople seek God in this world while others believe God is in heaven c.

    asked by y912f on July 5, 2009
  80. College Chemistry

    So i been trying to solve this question like for ever! so i hope you guys can help me , here is the question : the volume of a seawater on earth is about 330,000,000 mi3. if seawater is 3.5% sodium chloride by mass and has a density of 1.03g/mL, what is

    asked by Tasneem on January 19, 2010
  81. Science

    It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

    asked by Natsi on October 2, 2009
  82. Physics Problem 6.22

    It can be shown that for a uniform sphere the force of gravity at a point inside the sphere depends only on the mass closer to the center than that point. The net force of gravity due to points outside the radius of the point cancels. How far would you

    asked by Michael Moskvich on April 4, 2010
  83. PHYSICS

    1. Why is an electric field considered to be a vector quantity? 2. Draw the electric field around an electric dipole of +1 µC and -1 µC 3. How many electrons have been removed from a positively charged object if it has a charge of 1.5 x 1011 C? 4. A

    asked by Hayden on December 21, 2012
  84. math

    an agriculture field is rectangular, with dimensions 100m by 42m.a 20 m deep well of diameter 14 m is dug in a corner of the field and the earth taken out is spread evenly over the remaining part of the field.find the increase in the level of the field

    asked by abel on May 17, 2016
  85. English

    1. I will be 17 years old next year. 2. I would be 17 years old next year. (Is #2 corect? When can we use 'would'?) 3. The river runs south. 4. The river flows south. (Are both OK?) 5. We have dinner when she arrives. 6. We will have dinner when she

    asked by John on December 30, 2008
  86. Physics

    1.Halley's comet moves about the sun in an elliptical orbit with its closest approach to the sun being 0.59 A.U. and its furthest distance being 35 A.U. [1 Astronomical Unit (A.U.) is the Earth-Sun distance.] If the comet's speed at closest approach is 54

    asked by Brianna on July 11, 2010
  87. physics

    It has been suggested, and not facetiously, that life might have originated on Mars and been carried to Earth when a meteor hit Mars and blasted pieces of rock (perhaps containing primitive life) free of the surface. Astronomers know that many Martian

    asked by tom on February 1, 2016
  88. metreology

    Wien’s radiation law says that the wavelength of most intense radiation (λmax) emitted by a blackbody is inversely proportional to the absolute temperature (T) of the object. The surface of the Sun radiates as a blackbodyat a temperature ofT=6000

    asked by larry on December 22, 2015
  89. Literacy

    Please check my work, thank you. Question 1 – 4: Access the Library of Congress library Catalog. Then, find the information to answer the question. 1. What year was the oldest copy of Ralph Ellison’s Going to the Territory published? A. 1952 B. 1986 C.

    asked by Jen on September 7, 2011
  90. SOCIAL STUDIES help me with all 20 questions

    1. What significant effect did the treaty of Paris, signed after the French and Indian war, have in France? a. France had to withdraw to its empire in in Central and South American b. France had to allow the British to claim and settle the Ohio valley. c.

    asked by dISCO unicoRN on September 7, 2017
  91. Algebra: 8th Grade; Equation Check

    1) A private airplane leaves an airport and flies due south at 192 km/h. Two hours later a jet leaves at the same airport and flies due south at 960 km/h. When will the jet overtake the plane? t = time Equation: 192(t+3) = 960 2)An airplane flew for 4

    asked by Meaghan on March 7, 2009
  92. chemistry

    Complete and balance the displayed half reaction in neutral aqueous solution taking into account the electrons. Mg(s) → Mg2+(aq)

    asked by andy on June 1, 2010
  93. Chemistry

    How do the number of electrons found in the element’s outer shell relate to their position in the period table? -- I have an idea, but I'm not sure how to verbalize it, can you please help? Thanks! :)

    asked by Jordan on July 28, 2011
  94. Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element? A. Increases B. Decreases C. Remains the same

    asked by Ivy on December 7, 2010
  95. Chemistry

    As one descends group 6A of the periodic table, the number of valence electrons found in each element? A. Increases B. Decreases C. Remains the same

    asked by Ivy on December 7, 2010
  96. physics

    If 2.00 multiplied by 1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?

    asked by Justin on August 21, 2013
  97. physics

    How strong an electric field is needed to accelerate electrons in a TV tube from rest to one-tenth the speed of light in a distance of 4.9 cm ?

    asked by Debra on June 15, 2011
  98. Physics

    There is a flash of lighting that gives out a 25 C of negative charge from cloud to ground. Determine the amount of electrons involved? Do i use the formula F=qE I know one coulomb is 1.6 * 10 ^-19

    asked by Josh on August 5, 2009
  99. physics

    The potential difference applied to an X-ray tube is 5 kV and the current through it is 3.2 mA. Then the number of electrons striking the target per second and speed at which they strike?

    asked by sunil on April 7, 2011
  100. chemistry

    Li+Cl=>LiCl ionic bonding atoms valence electrons electron transfer from/ to each atom and ions formed in the product??

    asked by Robert23 on October 26, 2014