Question

If number of electrons in an atom is 8 and number of protons is also 8 then (neutrons=7)
1.what is the atomic number of the atom?
2.what is the charge in the atom?
3.what is the mass number of the atom?

Answer 1

1) Atomic no. = Z = 8
2) Charge = 0
3) Mass no. = A = 8+7 = 15 amu

Answer 2

Atomic number=Number of protons=8

Charge=0 (because number of electrons is equal to the number of protons)

Mass number=Number of neutrons+Number of protons=7+8=15

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