calisiapeart8 calisiapeart8

28-06-2021
Chemistry

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correct answer. 9. The mass number of an element is the number of?

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tahseenyasmeen379 tahseenyasmeen379

28-06-2021

Answer:

The mass number is defined as the total number of protons and neutrons in an atom. The number of neutrons = mass number − atomic number.

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