Guest sallylonglegs19 Posted March 3, 2004 Share Posted March 3, 2004 an example of an atom that has no charge is one that has A. 2 protons, 2 electrons, and 1 neutron B. 1 proton, 2 electrons, and 3 neutrons C. 3 protons, 1 electron, and 3 neutrons D. 3 protrons, 2 electrons, and 1 neutron if an electrically uncharged body is contacted by an electrically charged body, the uncharged body will A. develope the opposite charge as the charged body B. remain a neutral charged body C. develop the same charge as the charged body D. neutralize the charged body Link to comment Share on other sites More sharing options...
aommaster Posted March 3, 2004 Share Posted March 3, 2004 well, what are you exactly looking for? Link to comment Share on other sites More sharing options...
Sayonara Posted March 3, 2004 Share Posted March 3, 2004 Well one proton (positive charge) "cancels out" one electron (negative charge), and neutrons (effectively no charge) won't make any difference either way, so the first question should be fairly simple to work out. For the second question it will help to think about what electrical charge actually is. Electrons are the only subatomic particles that are free (under normal conditions) to carry a charge around, and they have a negative charge. If a body is packed with extra electrons it will be negatively charged, and in contact with a conductor some of those will "want" to leave. If a body has an electron deficit it will be positively charged, and on contact with a conductor it will try to "get" more electrons. That's a bit simple, but it should put you on the right track Link to comment Share on other sites More sharing options...
aommaster Posted March 3, 2004 Share Posted March 3, 2004 I was just thinking, for part B, won' the atom be negatively charged? If so, then why did sallylonglegs19 say that she wants an atom with NO CHARGE? Link to comment Share on other sites More sharing options...
JaKiri Posted March 3, 2004 Share Posted March 3, 2004 aommaster said in post # :I was just thinking, for part B, won' the atom be negatively charged? If so, then why did sallylonglegs19 say that she wants an atom with NO CHARGE? Two seperate questions I reckon. Link to comment Share on other sites More sharing options...
aommaster Posted March 3, 2004 Share Posted March 3, 2004 hmm.. doesn't look like it though, cause it looks more to me like a list! Link to comment Share on other sites More sharing options...
Sayonara Posted March 3, 2004 Share Posted March 3, 2004 They are two different multiple choice questions, clearly. Link to comment Share on other sites More sharing options...
aommaster Posted March 3, 2004 Share Posted March 3, 2004 oh! I got it now! Link to comment Share on other sites More sharing options...
Kedas Posted March 3, 2004 Share Posted March 3, 2004 1) A (neutrons are like there name says: neutral) 2) C (we assume conductive bodys) (D is only right when the uncharged body is earth) Link to comment Share on other sites More sharing options...
Sayonara Posted March 3, 2004 Share Posted March 3, 2004 Rule 1 Kedas: http://www.scienceforums.net/forums/showthread.php?s=&threadid=972 We tell them how, not the actual answer Link to comment Share on other sites More sharing options...
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