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To find the atomic mass of a particular atom you need to know what?
number of protons. To find the atomic mass of a particular atom you need to know the number of protons.
Expert answered|smp0784|Points 4131|
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Asked 238 days ago|8/27/2013 6:53:16 PM
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If Bohr said there are two electrons in the first shell then how many electrons would there be in the first shell of an atom according to the modern atomic theory?
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