Question

1) The atomic number and mass number
of calcium are 20 and 40 respectively.
Deduce the number of neutron present in
the calcium nucleus.​

Answer 1

ANSWER :-

Number of neutrons = 40 - 20 = 20

Number of electron = -20

Number of protons = -20

EXPLANATION :-

The mass number of an Isotopes is the sum of the number of protons as well as neutrons in the atomic nucleus.

Answer 2

Answer:

Numbers of Neutron = 40 - 20 = 20