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If number of electrons in an atom is 8 and number of protons is also 8, what is the atomic number of the atom?
Question

If number of electrons in an atom is 8 and number of protons is also 8, what is the atomic
number of the atom?

A.

12

B.

10

C.

16

D.

8

Correct option is D


The atomic number of an atom is equal to the number of protons in its nucleus. Since the given atom has 8 protons, the atomic number is 8. The element with atomic number 8 is oxygen. The number of electrons is also 8, indicating that the atom is neutral (as the number of protons equals the number of electrons).

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