1. Chemistry

    How many electrons would be required to fill the following sublevels? *3s *4s *3d *4d *3p *2d *3f *4d Choices are as follows A. 2 B 6 C 10 D 14 E There is no such orbital

    asked by Kimberly on November 7, 2010
  2. Science

    Can u please explain how u say 1M is equal to 6.02e23.,, What is the number 6.02e 23 electrons.

    asked by Immanuel on July 10, 2017
  3. Science

    What laboratory instrument utilized the wave nature of electrons?

    asked by Katie on November 13, 2015
  4. chemistry

    how many electrons are shared by two atoms that form a triple bond?

    asked by chris on January 12, 2009
  5. Chemistry

    how many electrons take part in redox reaction: Cl2 -> ClO3^-

    asked by yoshii on January 23, 2013
  6. Physics

    In the photoelectric effect, what determines the number of ejected electrons?

    asked by Rob on April 4, 2008
  7. Science

    Compared to the number of protons how many electrons does the carbonate ion have

    asked by Blah on November 10, 2010
  8. Science

    An oxygen ion has 8 protons and 6 electrons. What is its charge in coulombs?

    asked by Jaden on May 28, 2014
  9. chemistry please help

    How many core electrons are there in a ground state phosphorus atom?

    asked by Ena on November 1, 2010
  10. science

    Aluminium - electrons in outer level = 3 what is the charge on the Ion

    asked by sam on November 30, 2007
  11. Chemistry

    1. Which element forms bonds with a sea of mobile electrons? a) Ca b) C c) Ar d) He

    asked by catherine on December 2, 2010
  12. Physics

    How many electrons in an atom can have each of the following quantum number or sublevel designations? 1. n=4, l=3

    asked by Arian on October 31, 2010
  13. Chem

    What mass of protons would be required to just neutralize the charge of 3.5 of electrons?

    asked by Brandi on February 11, 2013
  14. Science

    What must happen to the electrons in a material to create an electric current?

    asked by Annie on November 12, 2015
  15. physics

    do all electrons ejected from a metal surface have the same kinetic energy?

    asked by Anonymous on April 13, 2010
  16. Chemistry

    How many moles of electrons are required to produce 23.8 g Cu from a CuSO4 solution?

    asked by Angel on May 2, 2010
  17. Physical Science

    What is the total number of electrons in a normal atom of hydrogen?

    asked by casey on February 19, 2008
  18. chemistry

    what is the atomic number of an atom X which has 14 protons 14 electrons and 12 neutrons? 2 14 12 26

    asked by kaiya on October 11, 2010
  19. Chemistry

    How many electrons in an atom can have each of the following quantum number or sublevel designations? 1. n = 4, l = 3

    asked by Chris on October 30, 2010
  20. chemistry

    the cobalt atom has how many unpaired electrons in its ground state? 2 4 1 0 3

    asked by Anonymous on July 11, 2010
  21. Chem

    Predict how many electrons will most likely be gained or lost by each of the following elements. Al I know it loses but how many?

    asked by rebekah on September 25, 2010
  22. chemistry

    how many valence electrons is an oxygen atom able to attract from other atoms

    asked by tia on February 7, 2010
  23. chemistry

    what is the atomic weight of an atom x which has 14 protons 14 electrons and 12 neutrons 2 14 12 26

    asked by kaiya on October 11, 2010
  24. chemistry

    Can you make a compound and show the electrons for magnesium and sulfur

    asked by samathy on October 31, 2010
  25. chemistry

    Give the orbital designations of electrons with the following quantum numbers" (a) n = 3, l = 0, m1=0 (b) n=2, l=1, ml=-1 (c) n=4, l=3, ml=-2 (d) n=4, l=2, ml=0

    asked by lynn on November 11, 2012
  26. chemistry

    How many core electrons are there in a ground state phosphorus atom?

    asked by danny on February 3, 2015
  27. chemistry please help

    How many core electrons are there in a ground state sulfur atom?

    asked by Anthony on October 30, 2010
  28. APChemistry

    Thank you very much~ When you do the VSEPR changes for an octahedral, do you first remove the electrons from the poles, or from the equator?

    asked by GRATEFUL AP CHEMISTRY STUDENT on May 11, 2010
  29. Chemistry

    If an element has 12 protons and 17 neutrons, how many electrons does it have? I think the answers twelve but I'm not sure?

    asked by Dean on May 24, 2018
  30. CHEMISTRY

    How many electrons does the p-orbital of a methyl radical carbon CH3^. contain?

    asked by Delli on November 25, 2007
  31. science

    How many protons, neutrons, and electrons does a neutral atom of calcium have?

    asked by Levi on December 15, 2011
  32. physics

    An isotope of iodine is I-126.how many protons, neutrons &electrons does it have

    asked by keria on January 21, 2012
  33. Chemistry

    The Maximum number of electrons that may occupy the third electron shell is A)2 B)8 C)10 D) 18

    asked by Taylor Beach on February 25, 2014
  34. Chemistry

    What mass of protons would be required to just neutralize the charge of 1.5 g of electrons?

    asked by Evy on September 22, 2010
  35. chemistry

    how do u set up the lewis structure for H30+? i know the available electrons is 3 but it has a +1 so it makes ir 2??

    asked by madison on October 23, 2007
  36. chemistry

    List the numbers of protons, neutrons, and electrons in Chlorine-18.

    asked by idk on November 1, 2018
  37. SCIENCE?CHEMISTRY***

    an 56 Fe 2+ particle has how many protons neutrons amd electrons??? 56 2+ Fe Thanks Andy

    asked by ANDY on May 15, 2010
  38. Science

    How are valence electrons involved in the formation of a covalent bond?

    asked by Shannon on January 14, 2008
  39. Physical sciences

    The ruler now make contact with the neutral sphere.what happens to electrons?

    asked by Mbali on April 20, 2014
  40. chemistry

    how can you tell how many valence electrons family 3 (transition metals) have? im confused about this.

    asked by riley on May 27, 2008
  41. Chemistry (electron transfer)

    Li^+(aq) + Zn(s) → Li(s) + Zn^2+(aq) How many electrons are transferred in the balanced equation? I came up with an answer of 2, is this correct?

    asked by Summer on April 11, 2018
  42. chemistry

    Of the metals Pb, Mg, Au, and Na, which will not spontaneously donate electrons to copper in solution?

    asked by Lou on June 14, 2010
  43. Chemistry

    Calculate the velocities of electrons with de Broglie wavelengths of 1.7 102 nm and 5.0 nm, respectively.

    asked by Anna on November 13, 2010
  44. chemistry

    which element in period 4 has four electrons in its electron-dot structure ?

    asked by Raynique on October 25, 2010
  45. Chemistry

    When chromium has 26 electrons, how many neutrons and protons does it have and what is it's standard notation

    asked by Chris on May 11, 2016
  46. Chemistry

    1. Which element forms bonds with a sea of mobile electrons? a) Ca b) C c) Ar d) He

    asked by Anonymous on December 2, 2010
  47. chemistry

    what element has four energy levels and two electrons on its outer shell

    asked by alisha on November 14, 2007
  48. Chemistry

    "Is the following species a dipole?" NH2Cl I have drawn out the lewis dot structure of the molecule and the electronegativy values I have are N- 3.0 Cl- 3.0 H- 2.1 I know that the electronegativity difference between N and Cl is 0 and the bond is non

    asked by Alexa on December 7, 2006
  49. Science

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania on January 30, 2014
  50. Physics

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania on January 30, 2014
  51. science

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania on January 30, 2014
  52. science

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania on January 30, 2014
  53. buisness

    could someone help me with this question? Which of the following scenarios would not be considered international business? Choose one answer. a. A Chinese manufacturer sells toys to a large toy retailer in the United States. b. Intel sells its processors

    asked by sharon on February 12, 2012
  54. social studies

    1. What were the Townshend Acts? A. The British put taxes on imported goods such as tea and glass. *** B. The British put taxes on hotels and other lodging accommodations. C. The British put taxes on newspapers, magazines, and official licenses. D. The

    asked by honey on October 24, 2018
  55. eng

    the primary purpose to al gore's an inconvenient truth is a. to inform the readers that there is environmental hazard in burning fossil fuels b. to entertain readers with stories from his college days and his professor's quotations c. to persuade the

    asked by help on January 20, 2017
  56. Physics

    A rabbit runs in a garden such that the x- and y-components of its displacement as function of times are given by x(t) = −0.44t2 − 6.0t + 73 and y(t)= 0.35t2 + 8.3t + 34. (Both x and y are in meters and t is in seconds.) (a) Calculate the rabbit's

    asked by Gina on September 10, 2010
  57. Phizzics....

    The Canadian microsatellite MOST (Microvariability and Oscillations of Stars) has a mass of just 52 kg. It travels in an almost circular orbit at an average altitude of 820 km above Earth’s surface. a) Calculate the gravitational force between Earth and

    asked by dreamygirl on May 15, 2012
  58. physics

    An airplane flies 200 km due west from city A to city B and then 280 km in the direction of 30.5° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C? The

    asked by Elisa on June 2, 2008
  59. physics

    The eye of a hurricane passes over Grand Bahama Island. It is moving in a direction 60.0° north of west with a speed of v1 = 42.0 km/h. Exactly three hours later, the course of the hurricane shifts due north, and its speed slows to v2 = 24.0 km/h, as

    asked by stef on September 11, 2010
  60. physics

    The eye of a hurricane passes over Grand Bahama Island. It is moving in a direction 77.2 ◦ north of west with a speed of 49.0 km/h. Exactly 2.92 hours later, the course of the hurricane shifts due north, and its speed slows to 22.4 km/h, as shown. How

    asked by Anonymous on February 28, 2017
  61. International Peace

    How does the United States deter North Korea from exploring ballistic missile research in creating an intercontinental ballistic missile?  What should the United States do if it is determined that North Korea is very close to creating the technology to

    asked by Sara Chimney on April 30, 2016
  62. physics

    A boat heads directly west across a river at 8.0 m/s while the river flows directly north at 2.0 m/s. Find VR.

    asked by Elizabeth on September 3, 2012
  63. History help?

    1.Southern states began to leave the Union not long after this event: a.Lincoln read and established the Emancipation Proclamation b.the fighting at Fort Sumter in South Carolina c.The Battle of Gettysburg was lost by the South d.the election of Abraham

    asked by Claire on January 21, 2015
  64. check geo

    during the 1800s europeans seeking raw materials and a market for goods A)chose to colonize australia instead of africa B)set up trading posts but did not interfere in african politics C)colonized the entire region except for liberia and ethopia D)focused

    asked by henry on September 10, 2009
  65. analytic geometry

    1. Find the longest and shortest distance from (10, 7) to the circle x^2 + y^2-4x-2y-20=0 2. From the start, a man runs 4km towards north, 3 km towards east and takes a rest. Draw the line from starring point to resting point and line from resting point to

    asked by sylvia on January 30, 2016
  66. physics

    to a man walking with a velocity of 3km/h due east the wind appears to blow north .but when he increases the speed to 7km/h due east the wind apeears to blow from north east .what is the actual velocity of the wind?

    asked by arsh on July 23, 2011
  67. physics

    A passenger walks from one side of a ferry to the other as it approaches a dock. If the passenger's velocity is 1.70 m/s due north relative to the ferry, and 4.5 m/s at an angle of 34.0° west of north relative to the water, what are the direction and

    asked by Anonymous on September 20, 2009
  68. Physics

    A passenger walks from one side of a ferry to the other as it approaches a dock. If the passenger's velocity is 1.50 m/s due north relative to the ferry, and 4.50 m/s at an angle of 30.0* west of north relative to the water, what are the direction and

    asked by Erin on October 2, 2011
  69. math

    A traveler went 10 miles south, 7 miles east, 2 miles south, and 2 miles west. How many miles is the traveler from the start?

    asked by Alyssa on November 8, 2013
  70. Physics

    Please help..... When something is thrown over a large distance (on earth ) what new factor comes into play? 1- The decrease in gravity over long distance 2- The increase in gravity over long distance 3- The tendency of thrown objects to fall to the ground

    asked by Jessica on October 1, 2016
  71. AP Physics B

    A 1010 kg geosynchronous satellite orbits a planet similar to Earth at a radius 1.97 × 105 km from the planet’s center. Its angular speed at this radius is the same as the rotational speed of the Earth, and so they appear stationary in the sky. That is,

    asked by Abby on October 14, 2012
  72. math

    The well is dug 14m deep. Its radius is 2m. The earth dug out is evenly spread out on a rectangular field of dimensions 10m*4m. Find the height of the platform raised.

    asked by aditi on December 13, 2016
  73. math

    A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a plat form of dimension 28m by 22m. Find the height of the platform.

    asked by Abenezer on May 9, 2014
  74. math

    a well of diameter 3 m is dug 14 m deep . the earth taken out of it has beem spread evenly all around of it in the shape of circular ring of width 4 m to form embankment. find the height of embankment .

    asked by Avi on March 16, 2016
  75. Physics

    How do you find the ratio of the new/ old world periods of a pendulum if the pendulum wee transported from earth to the moon, where the acceleration due to gravity is 1.63m/s^2? Im not sure if we use 9.8 at all, I think I'm supposed to use T=2 pi sqrtL/g.

    asked by cris on December 10, 2012
  76. College Algebra

    The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 44 years.

    asked by Brittney on November 17, 2010
  77. Math

    The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 42 years

    asked by Lataivia on April 10, 2014
  78. Math

    The ocean covers about 71% of the Earth's surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean? 362.10

    asked by Hayley on November 30, 2010
  79. Science

    the force of gravity on jupiter is much stronger than the force of gravity on earth. which of the following explains why this is true. A. Jupiter's orbit is farther away from the Sun and Earths orbit B. Jupiter has more mass than Earth C. Jupiter's orbit

    asked by Abby on April 23, 2015
  80. Physics

    I need major help with this please!!! On a safari, a team of naturalists sets out toward a research station located 6.9 km away in a direction 42° north of east. After traveling in a straight line for 2.1 km, they stop and discover that they have been

    asked by Rachel on September 16, 2012
  81. math

    The ratio of an objects weight on earth to its weight on Neptune is 5:7. How much would a person who weighs 150 pounds on earth weigh on Neptune? A.210 pounds B.750 pounds c.107 1/7 pounds D.170 pounds

    asked by jeneva on August 2, 2016
  82. Astronomy

    Only one side of the moon is visible from Earth because... A. the moon does not rotate on its axis. B. the moon does not revolve around Earth. C. the moon rotates faster than it revolves. D. the moon revolves once and rotates once in the same period of

    asked by James on May 13, 2011
  83. american history

    Which of the following statements is true of the Gulf of Tonkin affair? A. Congress was divided and only reluctantly passed the Gulf of Tonkin Resolution. B. The destroyer Maddox was sunk by North Vietnamese gunboats. C. Johnson approved covert amphibious

    asked by hilorie on August 27, 2012
  84. american history

    which of the following statements is true of the Gulf of Tonkin affair? a. Johnson approved covert amphibious raid on the north Vietnam B. congress was divided and only reluctantly passed the gulf of Tonkin resolution c. the destroyer Maddox was sunk by

    asked by cali on June 6, 2013
  85. english

    In each of the following sentences, correct any word that requires a capitalization. 1. The lawyer’s office is located on North Pleasant Street. 2. My uncle lives farther West than grandmother. 3. I’d like to move to the South by next summer. 4. The

    asked by Jennifer on November 22, 2015
  86. science

    the best explanation of why the Moon appears to change shape throughout the month is •from Earth's perspective, we see varying amounts of the illuminated part of the Moon. • the Moon is revolving around the Earth** • from a bird's eye view, the Moon

    asked by mary on September 11, 2017
  87. physics

    1. What is the acceleration on the Earth? Remember the equation for an object that starts at rest is this: d = 1/2at2 ( this is an experiment for droping a ball from a 6 meter hight and seeing how long it takes to get to the floor from 6 meters, it took

    asked by Bongo on October 3, 2007
  88. Biology

    These are true and false questions and I want to make sure that I got them right. 1. A water molecule is held together by two single polar covalent bonds. False 2. Because oxygen has a greater electronegativity than hydrogen, water molecules are polar with

    asked by Cady on September 9, 2011
  89. Science 2

    One light year is about 9 trillion kilometers. Arcturus is a star that is 37 light years from earth. If you are about 11 years old now , how old will you be when light that is leaving. Arcturus today reaches Earth ? How far, in kilometers, will it have

    asked by Jenny 2 on May 10, 2014
  90. phys

    An astronaut drops an object from rest (relative to the planet) on a planet alpha (having the same radius as of earth) from an altitude of one radius above the surface. When the object hits the surface its speed is 3.98 times what it would be if the same

    asked by ayyashi on May 18, 2011
  91. math

    The scale for an earth model is 1:40000000. The diameter of the earth is 12,756.32km. a)What is the diameter of the model in cm? I got 31.9cm (just need help on part b!) b) If the model is cut in half, how many jars of paint would be needed to paint each

    asked by Anonymous on October 22, 2014
  92. Chemistry

    1) How does the atomic radius change from left to right across a period in the periodic table? A) It tends to decrease*** B)It tends to increase C) It first increases, then decreases D) It first decreases, then increases 2) What is the charge of a cation?

    asked by Mary on October 17, 2016
  93. Chemistry

    1) How does the atomic radius change from left to right across a period in the periodic table? A) It tends to decrease*** B)It tends to increase C) It first increases, then decreases D) It first decreases, then increases 2) What is the charge of a cation?

    asked by Mary on October 18, 2016
  94. Geography

    If you traveled from 40 degrees North 80 degrees West to 35 degrees North 105 degrees W, in which direction would you have traveled?

    asked by Miguel on October 27, 2016
  95. Physics

    Which of the following involves a non-zero net force? I. A hockey-puck sliding at a constant speed on ice. II. The earth revolving around the sun at a constant speed. III. An object falling near the surface of the earth. A) I only B) III only C) Both I and

    asked by Astrogirl on October 13, 2011
  96. Social Studies

    1. Which of these South Asian countries is an Islamic republic? A. Pakistan B. Bangladesh C. Sri Lanka D. Nepal I believe the answer is A but I want to make sure 2. Why are poverty levels high in much of South Asia? A. high populations and low economic

    asked by alexa on September 26, 2018
  97. Statistics

    Option Seminar 2 5.19) According to data from the U.S. Energy information Administration, the 60.0 million U.S. households with personal computers were distributed as shown here with regard to geographic location and access to the Internet. The entries

    asked by Lesliam on July 20, 2009
  98. physics

    Three deer, A, B, and C, are grazing in a field. Deer B is located 61.1 m from deer A at an angle of 50.9° north of west. Deer C is located 78.4° north of east relative to deer A. The distance between deer B and C is 92.2 m. What is the distance between

    asked by Fallon on May 9, 2010
  99. physics

    Three deer, A, B, and C, are grazing in a field. Deer B is located 63.4 m from deer A at an angle of 50.8 ° north of west. Deer C is located 76.7 ° north of east relative to deer A. The distance between deer B and C is 96.7 m. What is the distance

    asked by josh on January 28, 2014
  100. physics

    Three deer, A, B, and C, are grazing in a field. Deer B is located 61.0 m from deer A at an angle of 54.1 ° north of west. Deer C is located 79.8 ° north of east relative to deer A. The distance between deer B and C is 98.1 m. What is the distance

    asked by trish on December 16, 2015