An atom with an atomic number of 26 has 56 nucleons. Find out its number of electrons, protons and neutrons. [Pg. No. 150]

Atomic number = 26

So, number of protons = 26.

For a neutral atom, number of electrons

= number of protons = 26.

Number of nucleons = mass number = 56

Neutrons = Mass number – Atomic number

= 56 – 26 = 30

Therefore, the atom has:

Electrons – 26

Protons – 26

Neutrons – 30