1. Science

    If an atomic nucleus were the size of a dime how far away might one of its electrons be? A. 1 foot B. 1 inch*** C. 1 yard D. 1 mile My answer (***)

    asked by kaz... on February 2, 2018
  2. Science

    if an atomic nucleus were the size of a dime how far away might one of its electrons be? A. 1 foot B. 1 inch*** C. 1 yard D. 1 mile My answer (***)

    asked by kaz... on February 2, 2018
  3. chem

    Ammonia is very soluble in water. Why? NH3 has a pair of unpaired electrons to which a hydrogen ion can add.

    asked by anees on April 16, 2007
  4. chemistry

    How many electrons are in the highest occupied energy level of these atoms? Na(sodium) Al (aluminum) F(fluorine) C(carbon)

    asked by james on February 8, 2012
  5. science

    I have read over 20 sites and I still cant figure this one out - in an atom electrons are located in energy levels that are a certain distance from the nucleus.

    asked by sam on November 3, 2007
  6. Physics

    If two pith balls - one which is neutral and another which has a charge of -9.6 uC (micro-Coulombs) - are touched together, how many extra electrons will each ball have?

    asked by Steven on April 8, 2009
  7. physics

    Calculate the net charge on a substance consisting of a combination of 8.9 × 10 13 protons and 4.4 × 10 13 electrons. Answer in units of C

    asked by ivan on February 26, 2012
  8. 9th Chemistry

    Why is there a big space in the periodic table between the 2nd & 3rd periods? The activity of the electrons is related somehow.

    asked by Marie on November 8, 2009
  9. physics 30

    Draw a scenerio with a magnet and the solenoid below that would induce a flow of electrons to the right of the page in the ammeter, as shown below.

    asked by sarah on March 21, 2012
  10. Justin

    If 2.00 X 10^20 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?

    asked by physics on August 19, 2013
  11. Science

    Why are metals good conductors of heat and electricity? Does it have to do with their valence electrons or the atomic packing factor?

    asked by Kim on September 8, 2018
  12. Solid State Physics

    At room temperature, do metals have a noticeably higher heat capacity than insulators because of the mobile electrons?

    asked by curiousmind on November 12, 2018
  13. chemistry

    what feature of rutherford's model has appeared in all later models of atom? Is it that electrons are outside, or does it have to do with alpha/gamma rays?

    asked by Anonymous on April 12, 2009
  14. Science

    During beta-particle emission, a neutron splits into a proton and an electron two protons two electrons two neutrons

    asked by Sophia on March 6, 2012
  15. PHYSICS PLEASE HELP!

    Two nitrogen atoms are separated by 4 cm. Each atom has 2 extra electrons. What is the force between them? is it attractive or repulsive? Explain.

    asked by Anonymous on January 20, 2013
  16. Physics

    How many electrons pass a given point in the circuit in 17 minutes? The fundamental charge is 1.602•10^-19. And the current is 0.526315789

    asked by Cynthia H. on January 13, 2016
  17. Chemistry

    When the oxidation-reduction reaction shown here is balanced, how many electrons are transferred for each atom of copper that reacts? Ag^+ + Cu = Ag + Cu^2+

    asked by Danielle on June 26, 2012
  18. chem

    Write the condensed electron configurations for the following atoms and indicate how many unpaired electrons each has. for Ca and Y for Ca i got [Ar] 4s2 but it got cuonted wrong

    asked by Samantha on November 18, 2012
  19. chemistry

    An electroplating cell operates for 35 min with a current of 1,9 A. Calculate the amount, in mols, of electrons transferred.

    asked by Alex on April 20, 2008
  20. Physics

    How many electrons pass a given point in the circuit in 17 minutes? The fundamental charge is 1.602•10^-19. And the current is 0.526315789

    asked by Cynthia H. on January 13, 2016
  21. chemistry

    What is the total number of nonbonding valence electrons in the "dipolar ion" form of glycine, +NH3CH2COO-?

    asked by Nathan on October 4, 2008
  22. Chemistry

    If your body develops a charge of -19 (microcoulombs), how many excess electrons has it acquired? What is their collective mass? Please explain how to do this

    asked by Jackie on September 7, 2011
  23. chemistry

    what are the favored geometrical arrangements for abn molecules which the A atom has 2, 3, 4, 5 and 6 pairs of electrons in its valence shell?

    asked by Mai on March 31, 2014
  24. Chemistry

    How many moles of electrons are involved in an electrolytic process if 3.07 amps are applied to the cell for 46.0 hours? The answer is 5.27, but I'm not sure how to get there. Please help!

    asked by Lilac on December 3, 2014
  25. physics

    calculate the net charge on a substance consisting of a combination of 3.0X10^13 protons and 8.6X10^13 electrons.

    asked by jandy on April 16, 2012
  26. chemistry

    what are the favored geometrical arrangements for ABn molecules for which the A atom has 2, 3, 4, 5 and 6 pairs of electrons in in its valence shell?'

    asked by priscilla on April 14, 2015
  27. To Dr.Bob222

    Is the answer for the nine protons and 10 electrons thing F^1- Yes, I answered to that effect at the original post. Its the fluoride ion.

    asked by Googly Eyez on October 15, 2006
  28. chemistry

    how would I determine the hybridization of the carbon atom if it has 3 single bonds with hydrogen and no free electrons? Do I draw this out??

    asked by ~christina~ on August 31, 2007
  29. physical science

    compare the postions of the electrons in Bohr's model of the atom with their positions according to modern atomic theory

    asked by taylor on October 15, 2008
  30. Science

    What is the difference between compounds, mixtures, and elemennts? Better off what do all of them mean? DO you know what type of microscopes are used to see atoms and protons and electrons along with neutrons? PLEASE HELP!

    asked by Mary on October 16, 2008
  31. Chemistry

    Which of the following compounds has an atom with an unfilled valence shell of electrons? A) H3O+ B) BF3 C) CH3OH D) NaI

    asked by Veronica on September 29, 2016
  32. L0velyLayna

    Electrons involved in a ( BLANK ) bond are shared unevenly. Nonpolar Polar Double Metallic

    asked by 8th Science on March 8, 2013
  33. chemistry

    What is the total number of nonbonding valence electrons in the "dipolar ion" form of glycine, +NH3CH2COO-?

    asked by Erika on October 3, 2008
  34. physics

    calculate the free electrons of a copper wire having a 0.064 inches diameter and 1000 ft. long?

    asked by vic on January 20, 2011
  35. Organic Chemistry

    What is the mechanism of action between sodium benzoate (NaC6H5COO) and hydrochloric acid (HCl)? I need to know where the electrons go in this reaction.

    asked by BOB on October 11, 2011
  36. chemistry

    Silver is electroplated at the cathode of an electrolysis cell by 1/2 reaction Ag(aq) + e- --> Ag(s). How many moles of electrons are required to electroplate 5.8g of Ag?

    asked by Ashley on November 30, 2011
  37. Science

    Electrons involved in a _____ bond are shared unevenly. metallic double polar nonpolar

    asked by Raelyn on March 12, 2013
  38. chemistry

    This statement is writing in my textbook can someone please explain to me what it mean: Determining the position of electrons, eliminates their wave properties.

    asked by lo on June 26, 2016
  39. biology

    Draw a picture of the structure of an atom that includes all the following: protons, neutrons, electrons, nucleus, orbitals

    asked by anonymous on November 20, 2013
  40. chemistry

    In the redox reaction: 4NH3(g)+3O2(g)-->2N2(g)+6H2O(l) the number of moles of electrons transferred is...

    asked by Metia on May 3, 2010
  41. chemistry

    for an oxygen atom,wich requeres more energy,the addition of two electrons or the removal of one electron?explain why

    asked by kabelo on September 19, 2010
  42. Chem

    Determine the number of protons and electrons in each of the following ions. Na+ Enter your answers numerically separated by a comma. Np, Ne =

    asked by James on September 5, 2014
  43. chemistry

    Which of these ions have five d electrons in the outermost d subshell? Mn2+ Fe2+ Re2+ Y2+ Tc2+ Zn2+ Ru2+

    asked by Katie on March 30, 2012
  44. Chemistry

    The ion formed by IODINE has electron configuration that resembles a. Te b. Kr c. Xe d. Br e. we cant know unless told whether it gains or loses electrons

    asked by Sarah on November 1, 2009
  45. Honors Chemistry

    Due to the screening effect, the 3s electrons of magnesium (Mg) feel an effective nuclear charge (Zeff) of: 1. +1 2. +2 3. −2 4. +12 5. +4

    asked by Bill on September 15, 2010
  46. Chemistry

    How many lone pairs does Cl- have? I can draw it using a cross and dot diagram but not sure if it would have 4, or 3 as one of the electrons has been added from somewhere to make it an ion? Thank you!

    asked by Rebecca on May 10, 2017
  47. chemistry

    How do the lewis structure and the positions of valence electrons affect the shape of the covalent compound? This is something for my lab

    asked by Lola on January 25, 2010
  48. Social Studies

    My most exalted Monarch - Your Majesty Queen Isabella, I am writing this letter most humbly for you to consider my request for three small ships and a crew so that I may sail west and find the shortest route to the East. I promised to chaim land for Spain

    asked by Laruen on November 17, 2011
  49. Social studies

    In which might the Spanish choice to claim North America land be considered controversial? A> Spanish explorers promised to free the slaves of North America. B>Spanish explorers failed to convert native people to Christianity. C> Spanish explorers seized

    asked by HELP I'M STUCK on November 20, 2017
  50. Science (Physics)

    Gravity on the surface of the moon is only 1 6 as strong as gravity on the Earth. What is the weight of a 30 kg object on the Earth? The acceleration of gravity is 10 m/s 2 . Answer in units of N What is the weight on the moon? Answer in units of N What is

    asked by Ahmad on November 18, 2013
  51. physics

    How do i find this? A shooting star is a meteor that burns up when it reaches Earth's atmosphere. Many of these meteoroids are quite small. Calculate the kinetic energy of a meteoroid of mass 6.0 g moving at a speed of 45 km/s and compare it to the kinetic

    asked by raina on April 4, 2010
  52. physics

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1500 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by john on September 16, 2010
  53. PHYSICS-HELP!!

    Two bicyclists, starting at the same place, are riding toward the same campground by two different routes. One cyclist rides 1500 m due east and then turns due north and travels another 1430 m before reaching the campground. The second cyclist starts out

    asked by JENNA on September 16, 2010
  54. physics

    Find the force of gravity between a newborn baby (mass = 2.9kg ) and the planet Mars (mass = 6.4×1023kg), when Mars is at its closest to Earth (distance = 5.6×1010m).

    asked by bob on February 2, 2014
  55. Algebra

    w=Cr^-2 Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the earth.)

    asked by Marysvoice on January 28, 2008
  56. Geography

    Review the cities located within the following longitude and latitude coordinates: 70-80 West Longitude and 30-40 North Latitude. Next, consult your local newspaper or other resource for the weather in these cities. Choose one of the cities found within

    asked by surfsupmel on April 28, 2011
  57. Physics

    A military helicopter on a training mission is flying horizontally at a speed of 60.0 m/s and accidentally drops a bomb (fortunately not armed) at an elevation of 350 m. You can ignore air resistance. Find the horizontal and vertical components of its

    asked by Michelle on October 21, 2012
  58. Language Arts

    1. Which of the following sentenced uses "so"? correctly? A. Playing on the school’s volleyball team is one of my favorite activities, and so is helping out with the school play. B. Working after school most days is something I have to do, so is helping

    asked by Anonymous on March 27, 2019
  59. English

    Can you check these sentences for me, please? 1)He is a superstar now and he is slamming (a synonym?) on his guitar. 2)He is responsible for the building (?) of Westminster Abbey. 3)He withdrew from Britain to defend Rome against (or from?) a Barbarian

    asked by Franco on February 16, 2010
  60. Math

    Earth weight is 5.9736 x 10^24 Kg and Venus is 4.8685 x 10^24 Kg. What is the combined weight of Earth and Venus ? a)10.8421 X 10^26 Kg b)10.8421 x 10^23 Kg c)10.8421 x 10^25 Kg d)1.08421 x 10^25 Kg

    asked by asdflk;jasdfla;kjsdfl; on January 13, 2016
  61. math

    an object that weighs 234lb on jupiter weighs 100lb on earth. what would an object that weighs 400 lb on jupiter weigh on earth?

    asked by linda on January 31, 2011
  62. math

    Earth weight is 5.9736 x 10^24 Kg and Venus is 4.8685 x 10^24 Kg. What is the combined weight of Earth and Venus ? a)10.8421 X 10^26 Kg b)10.8421 x 10^23 Kg c)10.8421 x 10^25 Kg d)1.08421 x 10^25 Kg

    asked by victoria on September 11, 2013
  63. history

    Can someone give me links for these please? Describe the military strategy that General William T. Sherman used across Georgia and South Carolina. Explain how the strategy affected the south, as well as how southerners reacted. Explain the purpose of

    asked by Alexis on May 11, 2016
  64. English

    Busan is the largest port city and second-largest city in South Korea. It lies on the southeast tip of the Korean Peninsula. It is important for transport and shipping. It is best known for Busan Port and Haeundae Beach. The port takes many ships and

    asked by rfvv on May 24, 2016
  65. vjs jagdalpur

    A positively charged particle projected towards west is deflected towards north by a magnetic field. state the direction of magnetic field. Which rule did you use to find direction?

    asked by shivangi on September 26, 2015
  66. vjs jagdalpur

    A positively charged particle projected towards west is deflected towards north by a magnetic field. State the direction of magnetic field. Which rule did you use to find direction?

    asked by shivangi on September 26, 2015
  67. trigonometry

    A plane is headed due west with an air speed of 300 mph. The wind is from the north at 80 mph. Find the bearing for the course and the ground speed of the plane.

    asked by mikey on November 27, 2012
  68. Trig

    A ship leaves port at 6 am and heads due east at 20 knots. At 10 am, to avoid a storm the ship changes course to N 47° E.. (47° east of north). Find the ships distance from port at 4 pm.

    asked by Isaac on November 16, 2015
  69. 10th grade

    Where can I find a complete description about North American racial ideologies from 1500 to 1830 and their effects on Latin American Racial ideologies? Does this mean the transition from slavery to freedom?

    asked by anonymous on September 2, 2009
  70. Geographyand socity

    1. _______________________ is the science of predicting the weather. (1 point) Climatology Ecology Meterology Botany 2. _______________________ is the condition of the atmosphere at any given location and time. (1 point) Weather Precipitation Climate

    asked by vensu on October 5, 2010
  71. History

    I need help finding 3 of the principals of economics from the passage below. The principals are people choose, all choices involve cost, and people respond to incentives. The passage: One of the first books, written in 1866, on the civil war was written by

    asked by Meg on September 18, 2017
  72. physics

    Hint: for part I use G = 6.67 times 10 to the negative 11. for part II, you don’t need to do the full calculation, you can just use your knowledge of how force of gravity depends on mass and separation distance. Compare the gravitational force on a 49 kg

    asked by chitra on December 15, 2009
  73. physics

    The period of a satellite is the primary way that the mass of planets is determined. The equation used for this calculation uses the fact that gravity of the planet provides the centripetal force to keep the satellite in orbit. The distance from the Earth

    asked by ck on November 23, 2010
  74. Science help

    India : Duck Australia : Duck South Africa : Duck, Goose Africa : Duck Cat Antarctica: Duck Goose cat If scientist wanted to argue that South Africa, Africa, and Antarctica was once connected, which animals would they use to determine that? Would it be

    asked by Chopsticks on April 1, 2009
  75. physics

    Your English teacher can swim with a constant speed of 0.67m/s. While facing south , he attempts to swim straight across the St. Lawrence River , which moves east at 1.4 m/s a) find his velocity as seen from the riverbank. B) if the river was 175m wide How

    asked by Melissa on June 14, 2012
  76. Math

    the mass of earth is 5.97 x 10^24 kilograms. The mass of the moon is 7.34 x 10^22 kilograms. Part A: What is the combined mass of earth and the moon? express your answer in scientific notation. Part B: How many times greater is the mass of earth than the

    asked by Jayson Angole on March 31, 2013
  77. Biology

    Compare and contrast the structure and function of a compound light microscope and a scanning electron microscope. Be sure to discuss the structure and function of each as well as the function and usefulness of each when examining a specimen. Please help!

    asked by School Lover on August 26, 2014
  78. physics

    On planet X, an object weighs 18.1 N. On planet B where the magnitude of the free-fall acceleration is 1.28 g (where g = 9.8 m/s 2 is the gravitational acceleration on Earth), the object weighs 37.9 N. The acceleration of gravity is 9.8 m/s 2 . What is the

    asked by zach on December 7, 2015
  79. History

    1. What were the Townshend Acts? (1 point) -The British put taxes on imported goods such as tea and glass. (answer) -The British put taxes on hotels and other lodging accommodations. -The British put taxes on newspapers, magazines, and official licenses.

    asked by Anonymous on October 8, 2014
  80. SCIENCE

    Determine the mass of a person on the moon whose mass on Earth is 70 kg Determine the weight of a person on the moon whose weight on Earth is 148 lbs. How is the mutual gravitational force affected by changing the separation distance between two 1.0 kg

    asked by Anonymous on February 12, 2012
  81. physics help 2 please!!

    Mass A (7 kg) and mass B (10 kg) sit on the ground, 2 m apart. a.) What is size of the the gravitational force: on A from B? N on B from A? N b.) What is the size of the gravitational force: on A from the Earth? N on B from the Earth? N once again, i am

    asked by kelsey on October 31, 2008
  82. PHYSICS

    AT WHAT DISTANCE ABOVE THE SURFACE OF THE EARTH IS THE ACCELERATION DUE TO EARTH'S GRAVITY 0.980M/S² IF THE ACCELERATION DUE TO GRAVITY AT THE SURFACE HAS MAGNITUDE 9.80M/S²

    asked by GIFT on August 4, 2014
  83. Science

    A CHILD IS BORN ON EARTH IN 2000. yOU ARE 94.6 TRILLION KILOMETERS AWAY FROM EARTH AND YOU SEE THE CHILD'S 3RD BIRTHDAY. HOW OLD IS THE CHILD AT THE TIME OF THE CHILD'S 3RD BIRTHDAY?

    asked by Chelsee on February 7, 2008
  84. trig

    two ships p and q left a port at the same time. q sailed on a bearing of 150 while p sailed on the north side of q. after a distance of 8km and 10km by pand q respectively, their distance apart was 12km. find the bearing of p and r

    asked by isaac on February 4, 2015
  85. Maths

    An aeroplane flies due north for 200 km and then turns due east and flies for a further distance of 325km. Find the bearing,to the nearest degree,of the aeroplane from its starting point.

    asked by Shane on April 5, 2013
  86. Social Studies

    What do many of the political conflicts in South Asia have in common? I think that many of the political conflicts in South Asia are based off of conflicting religions. In the past there have been many rivals between Hindus and Muslims, which causes much

    asked by Scarlet on May 7, 2016
  87. Physics

    Add the two component vectors from Sample Problem 1 algebraically to erify that they equal the given vector The two component vectors are: 8.6m(North) and 12m (west) The given vector is 15m(West 35 degrees North) Because when i add 8.6 and 12 it doesnt

    asked by Jake on September 30, 2014
  88. Social Studies

    Which of the following was the provision in the Treaty of Paris in 1763? a. All French land in North America was to be given to England b. All French land in North America was to be given to Spain c. All French lands west of the Mississippi and Louisiana

    asked by Annie on September 8, 2016
  89. physics

    Two workers are trying to move a heavy crate. One pushes on the crate with a force A, which has a magnitude of 445 N and is directed due west. The other pushes with a force B, which has a magnitude 325 N and is directed due north. What is the direction

    asked by paul on September 20, 2013
  90. physics

    A plane flies from base camp to Lake A, 260 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to

    asked by john on August 23, 2016
  91. English

    Identify the word that has an error in capitalization. Destini plans to study engineering at Stanford university. A.) engineering B.) Stanford C.) university**************************** D.) no error Did you know that the largest lake in North America is

    asked by Cassie on May 21, 2014
  92. World History

    I really need help matching these places to these descriptions: Japan, Taiwan, China, North Korea, Cambodia, Burma -This country's attack on its neighbor prompted UN forces to intervene. (North Korea?) -In the 1980s this nation was a world industrial

    asked by mysterychicken on April 3, 2012
  93. Physics

    For which of the following situations can the equation F = mg not be used to calculate the force due to gravity? a) The pull of gravity on an apple on the surface of the Earth. b) The pull of gravity on an airplane flying at an altitude of 8 km above the

    asked by Kelvin on November 19, 2012
  94. physics

    Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is about 9.33 109 J. cannot_evaluate cannot_evaluate J (b) Calculate the kinetic energy that

    asked by zeta on February 8, 2010
  95. Physics (please help)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Eart when the two forces are in direct competition, that is, when the Sun, Moon and Eart are aligned with the Moon between the Sun and the Earth. This alignment

    asked by Bon oncle on April 28, 2011
  96. Physics

    A satellite of mass 210 kg is launched from a site on Earth's equator into an orbit at 210 km above the surface of Earth. (a) Assuming a circular orbit, what is the orbital period of this satellite? (b) What is the satellite's speed in its orbit? (c) What

    asked by tom on November 24, 2010
  97. Physics

    A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 5.9 m due east. For the second putt, the ball travels 2.4 m at an angle 20° north of east. The third putt is 0.50 m due north. What displacement

    asked by Nicole on June 26, 2014
  98. Physics

    A passenger walks from one side of a ferry to the other as it approaches a dock.Passenger's velocity is 1.60 due north relative to the ferry, and 4.50 at an angle of 30.0 west of north relative to the water. What is the magnitude of the ferry's velocity

    asked by Meow Mix on September 8, 2009
  99. Physics

    A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 5.8 m due east. For the second putt, the ball travels 2.3 m at an angle 20° north of east. The third putt is 0.50 m due north. What displacement

    asked by yoyoma on August 18, 2010
  100. physics

    A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 5.9 m due east. For the second putt, the ball travels 2.8 m at an angle 20° north of east. The third putt is 0.50 m due north. What displacement

    asked by physics freakiv on June 4, 2012