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08-02-2021
Mathematics

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if An atom has 10 protons, 11 neutrons, and 9 electrons. What is the atomic number of this atom?

A) 9

B) 10

C) 11

D) 21

Respuesta :

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08-02-2021

Answer:

B

Step-by-step explanation:

Atomic number is equal to the number of protons in an atom.

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