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23-02-2021
Chemistry

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______ The total number of protons and neutrons in the nucleus.

A. Atomic Number
B. Mass number
C. Atomic mass

And why? I give Brainliest!

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Missjo126 Missjo126

23-02-2021

Answer:

A. Atomic Number

Explanation:

The mass number is used to calculate the number of neutrons & electrons in one atom of an element. In order to calculate the number of neutrons you must subtract the atomic number from the atomic mass.

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