Ch. 17-2 Atomic Structure

Feb 19, 2014

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A. Atomic Mass Unit. atomic mass unit (amu). 1 proton = 1 amu 1 neutron = 1 amu1gram is about 600,000,000,000,000,000,000,000 amu 23 zeros or 600 sextillion!!! . B. Mass Number. Sum of the protons and neutrons in the nucleus of an atom.. .

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Ch. 17-2 Atomic Structure

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