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What do we have to have to be able to determine the number of neutrons?

A. average atomic mass

B. mass number

Sagot :

Answer:

Answer is A :)

Explanation:

Breestheticidn

Answer:

B. Mass number

Explanation:

In order to gain the number of neutrons you need to subtract the Protons from the atomic mass (also known as the mass number or nucleon number.

For example :

Carbon - protons= 6

Nucleons=12

Therefore carbons neutrons = 6

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