1. Chemistry

    Explain how a non metal atom becomes negative. Lose an electron, become negative. Bob Pursley isn't at his computer right now but I don't think he would mind if I explained that ADDING an electron to a non-metal makes it become negatively charged. I agree

    asked by Mani on April 18, 2007
  2. chemistry

    what theory describes how negatively charged electron orbitals orient around a positvely charged nucleus?

    asked by Erin on December 3, 2012
  3. Science

    Use the electron theory to explain how one object can be negatively charged and another can be positively charged. help If electrons are negative, removing them will leave a net positive charge (net meaning fewer negative electrons than postivite protons).

    asked by Nicka on November 29, 2006
  4. IPC

    i don't have a book or anything to go look all this stuff up so i really need help understanding this.. Which of the following statements is not true? a)negatively charged objects attract other negatively charged objects. b)postively charged objects

    asked by Please help!! on May 11, 2011
  5. Physics

    A hydrogen atom consists of a positively charged proton (nucleus) and a negatively charged electron. The following is correct due to Coulomb's law: a.The two particles repel each other b.The electron accelerates toward the proton c.The electron and proton

    asked by Sammy on February 5, 2010
  6. Physics

    Explain using an example how to charge an object positively using only a negatively charged object.

    asked by Sam on April 13, 2009
  7. Physics

    Explain using an example how to charge an object positively using only a negatively charged object.

    asked by Sam on April 13, 2009
  8. Physics - urgent help needed

    Explain using an example how to charge an object positively using only a negatively charged object.

    asked by Sam on April 13, 2009
  9. Physics

    When a -ively charged object comes in contact with a +ively charged object, they dischage. The electrons flow from the -ive side to the +ive side until the charges on both objects are equal What happens when a negatively charged object and a postively

    asked by testing on January 25, 2007
  10. science help

    One group of students is investigating the properties of charged objects. Their observations are listed below. When two positively charged objects are brought close to each other, they push each other away. When two negatively charged objects are brought

    asked by Oscar on December 1, 2015
  11. science

    What does effect of negatively charged Object on positively charged object mean

    asked by brenda on May 16, 2011
  12. physics

    two charged plates are 2mm apart. An electron escapes from the negatively charged plate and reaches the positively charged plate in 1.2*10^-8 seconds. Find the electric field between the plates?

    asked by Nowah on July 24, 2012
  13. physics

    two charged plates are 2mm apart. An electron escapes from the negatively charged plate and reaches the positively charged plate in 1.2*10^-8 seconds. Find the electric field between the plates?

    asked by Nowah on July 24, 2012
  14. physical science

    6. If one body is positively charged and another body is negatively charged, free electrons tend to [A. move from the negatively charged body to the positively charged body.] B. remain in the positively charged body. C. remain in the negatively charged

    asked by jake on March 6, 2012
  15. Science

    I can't find this answer in my book but can someone tell me if its right please? When you remove electrons from a metal cup, the cup becomes: negatively charged - positively charged or ionized? I think it is negatively charged. Thanks

    asked by Sue on October 9, 2012
  16. electricity

    If one body is positively charged and another is negatively charged what will free electrons do? Generally it flows providing they are touching (or close enough to jump) and are conductors. Please read: http://www.kpsec.freeuk.com/electron.htm

    asked by catherine on June 7, 2007
  17. physics 30

    An electron that has a distance of 10.0 cm , is accelerated from rest through a potential difference of 4.50 kV before it enters a region between perpendicular elecric and magnetic fields. The electron moves into a region between positively charged plate

    asked by sarah on March 21, 2012
  18. Electricity and Electronics

    If one body is positively charged and another body is negatively charged, free electrons tend to A. move from the negatively charged body to the postively charged body. B. move from the postively charged body to the negatively charged body. C. remain in

    asked by Mikaela on August 22, 2012
  19. Science

    In a classroom experiment, a student rubs a comb against her hair. The child is then brought near bits of paper resting on a surface. Which of these can be concluded if the comb picks up bits of paper? A. The comb is an insulator, but paper conducts

    asked by Landon on April 24, 2019
  20. Electronic

    If one body is positively charged and another body is negatively charged, will the free electrons tend to move from the negatively charged body to the positiovely charged body? yes

    asked by Ed on September 27, 2006
  21. physics

    How can you charge an object negatively with only the help of a positively charged object?

    asked by Nicole on July 14, 2010
  22. Physical Science

    What is the length of an aluminum rod at 65 degress celcius if its length at 15 degrees celcius is 1.2 meters? Finallength-initiallength=coefficentlinearexpansion*(65-15). You can get the coefficent of linear expansion for aluminum from your text or a

    asked by Mirayah Robinson on July 5, 2005
  23. physics

    1)The difference of potential between terminals of a battery is 6V. How much work is done when a series of negative charges totaling 0.5 C are moved from one terminal to another? 2) Two parallel metal plates have opposite charges and a difference of

    asked by Sylvia on February 27, 2010
  24. Science

    To neutralize a pithball electroscope all you have to do is to hold it for a very short time. Explain what happens to discharge the pith ball if it is a)negatively charged b)positively charged

    asked by anum on April 28, 2008
  25. Chemistry

    2. The red subatomic particles can best be described as? counted into the mass of the atom, negatively charged, located in the electron cloud not counted into the mass of the atom, negatively charged, located in the electron cloud not counted into the mass

    asked by SwimmerGirl on January 16, 2018
  26. physics

    if a negatively charged rod is brought near a negatively charged electroscope, there will be no effect the leaves will fall the leaves will spread farther apart the electroscopw will become positively charge

    asked by kriti on March 28, 2011
  27. MS. SUE HELP- Chemistry

    Check answers? 1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are negatively charged particles**** B) Cathode rays can be deflected by magnets C) An electron is 2000 times lighter than a hydrogen

    asked by Mary on October 7, 2016
  28. Chemistry

    Check answers? 1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are negatively charged particles**** B) Cathode rays can be deflected by magnets C) An electron is 2000 times lighter than a hydrogen

    asked by Mary on October 7, 2016
  29. Physics

    A uniform electric field exists in the region between two oppositely charged plane parallel plates. an electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 3.20 cm distant from the

    asked by Sarah on July 8, 2009
  30. Science- Electric and Magnetic Potential Energy

    1. At which position will the bar magnets most likely experience the least magnetic potential energy between them? D - position 4 2. A positively charged test object is moving toward the positive source charge in an electric field. B - It's potential

    asked by ImLegit on April 19, 2016
  31. Physics

    an electron is sitting 10cm away from a small object -5nc it is let go and moves away from the charged object when it reaches a distance of 15 cm away find its speed

    asked by Ryan on May 26, 2014
  32. Physics

    Two parallel plates are 4.85 cm apart. The bottom plate is charged positively and the top plate is charged negatively, producing a uniform electric field of 5.51 x 104 N/C in the region between the plates. What is the time required for an electron, which

    asked by Ashley on January 31, 2012
  33. Physics

    Question: When a balloon is rubbed with fur, it becomes negatively charged. Explain why?

    asked by Tina on July 17, 2011
  34. science

    In experiments involving a pithball electroscope, what causes the pithball to move? I believe the answer is B A. The pith material always holds a natural positive charge, and it is attracted to other charged objects. B. Electrons jump onto or off the

    asked by Jenny on February 28, 2009
  35. science

    A scientist experiments on two different pairs of objects. During the experiment, the objects in one of the pairs are brought into contact with each other; the objects in the other pair are brought close together, but they do not touch. The scientist then

    asked by Anonymous on May 18, 2013
  36. physics

    please check my answers and help me with the first one. how can you charge an object negatively with only the help of a positively charged object? -This one I am not too sure, when one material is rubbed against another electrons jump readily from one to

    asked by Soly on November 6, 2007
  37. Value of a Charge of a Body (Physics 11th Grade)

    What is the value of a charge of a body that carries 20 excess electrons? I think that the question asks you to pretend that something is negatively charged by 20 electrons. So I think you take the charge of an electron, which is 1.6 x 10^-19, and multiply

    asked by Angela on February 25, 2011
  38. physics

    1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of oppositely charged plates. The drops were

    asked by Kristie on April 20, 2012
  39. science

    Mei-Ling is given the task of studying the compound calcium bromide. Before she even begins her research, what information can Mei-Ling obtain from the compound's chemical name alone? Select all that apply. She can tell that the compound forms molecules.

    asked by macie on May 14, 2019
  40. Physical Science

    true or false in an atom, negatively charged electrons surround a positively charged nucleus

    asked by Dallas on May 9, 2011
  41. Physics

    7. Two metal spheres are suspended from insulating threads. A negatively charged rod is brought near these spheres. One sphere is pushed away from the rod and the other is attracted toward it. Describe the behavior of the spheres. SOLUTION: ----> {Metal

    asked by sally on May 29, 2009
  42. Chemistry (please Help!!)

    determine which experiences a lower effective nuclear charge. using words and/ or drawings explain why. A) an electron in a 2s or an electron in a 2p B) a valence electron on sulfure or a vance electron on silicon C) a valence electron on chlorine or a

    asked by alia on April 13, 2015
  43. Chemistry

    Which of the following are key parts of Dalton's Atomic Theory (Click the 4 that apply)? (1 point) All elements are composed of tiny indivisible particles called atoms*** Atoms of the same element are identical. The atoms of any one element are different

    asked by Spring Allergies on September 30, 2019
  44. help help physics

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked by H.T on May 12, 2011
  45. physics ( need answer very very soon pleaseeeee)

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked by billy on May 13, 2011
  46. physics

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked by H.T ( helppppppp) on May 12, 2011
  47. science Please Help

    1. A positively charged test object is moving toward the positive source charge in an electric field. What happens next??? A. its potential energy decreases. B. Its potential energy increases. C. Its potential energy stays the same. D. Its potential energy

    asked by HELP MEEEEE on December 4, 2014
  48. physics

    What is the force on an electron moving at v = 2.5*10^5 m/s away from a long wire,3mm from the electron, carrying a 12 A current? Give the magnitude & direction of the force. I calculated mag induction using B = u0I/2(pi)*a and force on the electron using

    asked by Sandhya on October 12, 2008
  49. Physics

    A sexond smaller metal sphere was positioned near the van de Graff machine. THe sphere was grounded. Did this snaller sphere become charged? How and why? was the interaction between the two spheres attractive or repulsive? Explain. Yes the smaller sphere

    asked by Andrea on April 2, 2008
  50. Science!

    Ernest Rutherford's atomic model included a nucleus comprised of positive particles called protons. Later, James Chadwick discovered neutrons. How did Chadwick's discovery change the atomic model? A. The new model showed a negatively charged nucleus. B.

    asked by blue on October 21, 2014
  51. chemistry

    a. Explain what must happen in order for the oxygen atom to become negatively charged. b. Explain what must happen in order for the oxygen atom to become positively charged

    asked by k on March 12, 2020
  52. Science

    Describe what would happen if a positively charged sodium ion and a negatively charged chlorine ion came into contact?

    asked by Trent on May 27, 2015
  53. Physics

    1. Two objects suspended by insulating strings attract each other due to static electricity? a) are they neccessarily oppositely charged? b) After they are allowed to touch, they continue to attract and need to be pulled away from each other by the

    asked by anonymous on July 5, 2011
  54. science

    What happens when a charged object (plastic) is brought close to another oppositely charged object (glass).

    asked by thi on February 9, 2015
  55. Organic chemistry

    You are at isoelectric point for a solution of Leucine. If the number of negatively charged carboxyl ate groups, -COO-, is 1x10^19, how many positively charged amino groups, NH3+, would there be?

    asked by Becky on October 5, 2011
  56. Physics-Check my answers

    when combing you hair you scuff electrons from your hair onto the comb.is your hair then positively or negativley charged?How about the comb? -Your hair is postively charged, while the comb is negatively charged Why are the tires for trucks carrying

    asked by Soly on November 6, 2007
  57. Science(Stuff to do like with magnets!)

    1. A positively charged test object is moving toward the positive source charge in an electric field. What happens next??? A. its potential energy decreases. B. Its potential energy increases. C. Its potential energy stays the same. D. Its potential energy

    asked by Guest user on September 15, 2014
  58. sociology

    Which theory, in conjunction with labeling theory, tries to explain how people define deviance in situations in everyday life? A. conflict theory B. functionalism theory C. network theory D. symbolic interaction i cant find this in my vocabulary list so

    asked by orpheus on November 27, 2013
  59. Science.

    Whats the difference between a scientific theory and a regular theory? A theory may be about anything but a scientific theory is designed to explain some scientific principle. Why people shop at a certain store might be an ordinary theory but why AgCl is

    asked by Christina on August 9, 2007
  60. Physics

    The mass of the electron is 9.11 x 10-31 kg and the mass of the proton is 1.67 x 10-27kg. Both carry the same elementary charge (positive for the proton and negative for the electron). If I release both particles from rest at the middle point between two

    asked by Vlad on February 6, 2010
  61. Chemistry

    An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1? 2 ev 4 ev 8 ev 12 ev What is the best

    asked by bigurl1.4 on October 31, 2013
  62. science(2 QUESTIONS)

    PLEASE ANSWER MY 2 QUESTIONS IN SCIENCE THANKS 3.when a negatively charged object moves in the opposite direction of an electric force field,the potential energy of the object. A.becomes zero(I PICK THIS) B.increases C.decreases D.stays the same 4.the two

    asked by Anonymous on February 2, 2014
  63. science(2 Qs)

    PLEASE ANSWER MY 2 QUESTIONS IN SCIENCE THANKS 3.when a negatively charged object moves in the opposite direction of an electric force field,the potential energy of the object. A.becomes zero(I PICK THIS) B.increases C.decreases D.stays the same 4.the two

    asked by Anonymous on February 2, 2014
  64. Physics

    If you shine an ultraviolet light on the metal ball of a negatively charged electroscope, it will discharge. But if the electroscope is positivelely charged, it won't discharge. Why?

    asked by Jake on April 2, 2008
  65. science

    A scientist experiments on two different pairs of objects. During the experiment, the objects in one of the pairs are brought into contact with each other; the objects in the other pair are brought close together, but they do not touch. The scientist then

    asked by Anonymous on May 17, 2013
  66. Physics

    The figure below shows an electron passing between two charged metal plates that create an 115 N/C vertical electric field perpendicular to the electron’s original horizontal velocity. (These can be used to change the electron’s direction, such as in

    asked by Joe on August 22, 2014
  67. physics

    8 1/2 HRS ON THIS MASTERING PHYSICS WOW n 1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment tiny oil drops were sprayed into a uniform electric field between a horizontal pair of

    asked by Kristie on April 18, 2012
  68. History

    10. Many geographers, such as Elder, Knopp, and Nast, refer to theories that explain or inform our understanding of sexuality and space as........ A. queer theory B. heteronormative theory C. gender studies D. spatial theory E. modernization theory A

    asked by Anonymous on January 23, 2016
  69. Physics

    Consider an electron entering a region between two charged metal plates where, aside from the electric field E, there is also a constant magnetic field B directed into the paper. V is the velocity of the electron (from left to right direction). a)Write an

    asked by Cici on December 28, 2010
  70. HELP

    how can you tell the difference between a positively charged and a negatively charged object by using a electroscope Ashley: Please include the subject in your questions: Science, or Electricity would have been appropriate here. You can only determine the

    asked by ashley on November 29, 2006
  71. Physics

    Two parallel, uniformly charged, infinitely long wires carry opposite charges with a linear charge density ? = 5 £gC/m and are 8 cm apart. What is the magnitude and direction of the electric field at a point midway between them and 49 cm above the plane

    asked by Long on February 17, 2012
  72. Physics

    The figure shows portions of two large, parallel, non-conducting sheets, each with a fixed uniform charge on one side. The magnitudes of the surface charge densities are σ(+) = 4 μC/m2 for the positively charged sheet and σ(-) = 10 μC/m2 for the

    asked by Lyra on February 17, 2014
  73. Psychology

    Your body's reaction to the stress you have been under for the past two weeks is that you have become more tired and now have a sore throat. What is this called? Object–relations theory Opponent–process theory Two–factory theory Type B behavior

    asked by Haley on November 6, 2012
  74. Psychology

    Your body's reaction to the stress you have been under for the past two weeks is that you have become more tired and now have a sore throat. What is this called? Object–relations theory Opponent–process theory Two–factory theory Type B behavior

    asked by Haley on November 5, 2012
  75. Physics

    In a Bohr of a Hydrogen atom, an electron moves in a circle with a radius of 5.10(^-9) cm around a nucleus charged positive due to electrostatic force. What is the intensity of the force so that the electron has a velocity of 2.3 x 10(^8) cm/s? The mass of

    asked by Leslie on November 9, 2012
  76. physics (electric charges)

    Hi, How can you charge an electroscope negatively? Is it by using a positively charged rod? Can someone please help me? Thank you :)

    asked by gaveen on May 12, 2010
  77. physics

    Hi, How can you charge an electroscope negatively? Is it by using a positively charged rod? Can someone please help me? Thank you :)

    asked by gaveen on May 12, 2010
  78. physics (electric charges)

    Hi, How can you charge an electroscope negatively? Is it by using a positively charged rod? Can someone please help me? Thank you :)

    asked by gaveen on May 12, 2010
  79. physics

    lighted matchstick brought near the negatively charged electroscope

    asked by somebody on June 10, 2017
  80. science

    The electric field 1.5 cm from a very small charged object points toward the object with a magnitude of 180,000 N/C. What is the charge on the object?

    asked by bano on January 26, 2014
  81. physics

    What can we conclude from the attractive nature of the force between a positively charged rod and an object? 1. Cannot be determined. 2. The object is an insulator. 3. The object is a conductor.

    asked by Anonymous on February 20, 2010
  82. physical science

    The oxygen atoms of a water molecule are most attracted to 1: Other oxygen atoms, negatively charged ions, positively charged ions or nonpolar molecules?

    asked by palmer on November 6, 2007
  83. physics

    An electron is accelerated in the uniform field E = 2.0 x 104 N/C between two parallel charged plates (Negative charged plate is on the left and positively charges plate is on the right). The separation of the plates is 1.5 cm. The electron is accelerated

    asked by myra on May 27, 2012
  84. Electronic Field

    At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy = 3.6 103 m/s. Suppose that the electric field between the plates is given by E = (120 N/C) j. (a) What is the electron's

    asked by Jennifer on February 15, 2007
  85. physics

    At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.5 × 105 m/s and vy = 3.0 × 103 m/s. Suppose the electric field between the plates is given by In unit-vector notation, what are (a) the

    asked by trisha on January 26, 2011
  86. chem please explain to me!

    can someone please elpain to me the formation of binary ionic compounds from its constituent element. cuz I don't understand! thanks I really thank you guys alot! What grade are you in? Do you know about s and p orbitals? um.. why does it matter??? and I

    asked by carol on June 17, 2006
  87. physics

    An electron is projected horizontally at a speed of 3x10^6 m/s into a uniform electric field 200 N/C produced by two charged plates of width 0.1m (a) find the a cceleration of the electron in the elec field.(b) finn the time takes to travel through the

    asked by rahidul on February 24, 2017
  88. science

    an electron is projected horizontally at a speed of 3x10^6 m/s into a uniform electric field 200 N/C produced by two charged plates of width 0.1m (a) find the a cceleration of the electron in the elec field.(b) finn the time takes to travel through the

    asked by rahidul on February 24, 2017
  89. chemistry

    Check? Answers On bottom. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent bond When an atom gains or loses valence electrons and becomes charged, it is known as

    asked by Victoria on December 13, 2012
  90. chemistry

    Check? Answers On bottom. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent bond When an atom gains or loses valence electrons and becomes charged, it is known as

    asked by Victoria on December 13, 2012
  91. Chemistry

    Check? Answers On bottom. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent bond When an atom gains or loses valence electrons and becomes charged, it is known as

    asked by Victoria on December 13, 2012
  92. Physics

    A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in

    asked by Max on September 16, 2010
  93. Static Electricity. 11th Grade Pre-AP Physics

    Hi everyone! I need some help studying for a test on Static Electricity. I have a few review questions that I don't know how to do. Below they are numbered and in parenthesis I answered what I think you might have to do to get the answer. Please help me in

    asked by Angela on February 25, 2011
  94. chem PLEASE HELP

    WHO MADE THESE ATOMIC DISCOVERIES? An atom has a nucleus that is very small In a reaction, the mass of the products must equal the mass of the reactants. Electrons are negatively charge pieces of matter. An electron has a mass that is very small compared

    asked by Sal on April 14, 2011
  95. A&P

    Compare ionic, covalent, and hydrogen bonding, and fully describe an example of each. Is this right and I need help with an example of a covalent bond. Ionic bond is formed from one metal and one non metal. It is a solid at room temperate. In an ionic bond

    asked by Danielle on November 14, 2010
  96. Physics

    Two negatively-charged bodies with -5.4e-5 C are 0.20 m from each other. What force acts on each particle? F=kqq/d^2 F=(9.0e9)(q)(q)/(.20^2) Would both q's equal -5.4e-5 C?

    asked by Lucy on January 13, 2008
  97. physics

    The grid in a high-vacuume triode is usually kept negatively charged with respect to the cathode so that the electrons may be

    asked by Sara on March 24, 2012
  98. chemistry

    what experimental evidence led Thomson to conclude that cathode rays were negatively charged?

    asked by ducky on September 26, 2010
  99. Human service

    Who developed the behavioral learning theory and explain the theory? Did John Watson, Ivan Pavlov and B.F. Skinner develop the behavioral learning theory? Also where can I found a explanation on this theory? Thank you

    asked by patiance on January 24, 2011
  100. Physics

    (a)Assuming that only gravity is acting on it, how far does an electron have to be from a proton so that its acceleration is the same as that of a freely falling object at the Earth’s surface? (b)Suppose the Earth were made up only of protons but had the

    asked by Brian on July 29, 2010