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24-11-2020
Chemistry

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How many neutrons are in the nucleus of an atom with a mass number of 80 and an atomic number of 35?

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lavenderlillacs25 lavenderlillacs25

24-11-2020

Answer: 45

Explanation:

mass number = number of protons and neutrons

atomic number = number of protons

to find neutrons subtract atomic number from mass number

so 80 - 35 = 45 neutrons

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