Question

Ca and Ar are called isobars because they have the same
(a)mass number but different atomic number.
(b)atomic number but different mass number.
(c)number of protons but different number of neutrons.
(d)number of electrons but different number of protons.​

Answer 1

Explanation:

Ca and Ar are called isobars because they have the same

(a)mass number but different atomic number.

(b)atomic number but different mass number.

(c)number of protons but different number of neutrons.

(d)number of electrons but different number of protons.

In this option (b) is correct because Isobars are atoms of different chemical elements that have the same number of nucleons.

Answer 2

Answer:

(a) mass number but different atomic number.