Question

number of protons = 8 , neutrons = 8 and electrons = 8 , find the Atomic number and mass number​

Answer 1

Explanation:

Since oxygen has 8 protons and 8 neutrons, the atomic mass of oxygen is 16, which is the sum of protons and neutrons.

Answer 2

Explanation:

If number of electrons in an atom is 8 and number of protons are also 8, then (i) what is the atomic number of the atom? And (ii) what is the charge on the atom?

Answer:

Number of Protons = 8

Number of Electrons = 8

Number of neutrons = 7

Atomic Number = Number of electrons = Number of protons

(i) The atomic number is equal to the number of protons. Therefore, the atomic number of the atom is 8.

(ii) Since the number of both electrons and protons is equal, therefore, the charge on the atom is 0.