Question

two atoms are said to be isobars if a. they have same atomic number but different mass number b. they have same number of electrons but different ​

Answer 1

Answer:

No, isobars are having same atomic mass but different atomic number

as Ca-20 and Ar-20 these are isobars

and also they have different number of electrons as the elements is different and also electronic configuration is also different

Answer 2

Answer:

a

Explanation:

Isobars are atoms of different elements having same atomic number but different mass number.

Eg: deuterium &helium