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Physics Review Question Unit: Electricity and magnetism Year: 1995 Question#: 25 Question: A neutral atom must contain equal numbers of (1 ) protons and neutrons, only (2 ) protons and electrons, only (3 ) electrons and neutrons, only (4 ) protons, neutrons, and electrons What is this question really asking? Explanation by: Nathaniel W [ Return to question menu ] Answer 1 protons and neutrons, only INCORRECT Because neutrons have no charge, therefore they cannot balance out the charge of the protons, leaving the atom not in a neutral state. return to top Answer 2 protons, and electrons, only CORRECT Correct, because protons (+) and electrons (-) must be balanced to have a neutral atom. Neutrons have nothing to do with an atom's charge. return to top Answer 3 electrons and neutrons, only INCORRECT Because neutrons have no charge, therefore they cannot balance out the charge of the protons, leaving the atom not in a neutral state. return to top Answer 4 protons, neutrons, and electrons INCORRECT Because neutrons have no charge, therefore they cannot balance out the charge of the protons, leaving the atom not in a neutral state. return to top What's this question really asking? The question is asking the reader if they know the basic fundamentals to atomic structure. return to top |
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