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16) The mass number of an element whose atoms have 12 protons and 13 neutrons is_ a) 12 b) 13c) 25 d) 12.5
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16) The mass number of an element whose atoms have 12 protons and 13 neutrons is_ a) 12 b) 13c) 25 d) 12.5
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Jan 24, 2020
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16) The mass number of an element whose atoms have 12 protons and 13 neutrons is_
a) 12
b) 13c) 25 d) 12.5
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Michael Lindsay
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the answer is c) 25 because the mass number is the # of protons and neutrons in the nucleus, therefor, 12 + 13 = 25
Ilkinulas
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Jan 31, 2020
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Ilkinulas
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