Question

The atoms of the elements which have same number of neutrons are called
A) Isobars B) Isotopes C) Isotones D) None

Answer 1

Answer:

Explanation:

C. ISOTONES.

EG. CALCIUM AND POTASSIUM.

AT. NUMBER OF K AND Ca ARE RESPECTIVELY 19 AND 20 AND THEIR MASS NUMBERS ARE RESPECTIVELY 39 AND 40.

NEUTRONS IN K= 39-19= 20 NEUTRONS.

NEUTRONS IN Ca = 40-20=20 NEUTRONS.