The atomic number of calcium and argon are 20 and 18 respectively, but the mass number of both these elements is 40. What is the name given to such a pair of elements?

AcademicChemistryNCERTClass 9

The pair of elements is known as Isobars.

Elements with different atomic numbers but the same mass numbers are known as isobars. 

Updated on 10-Oct-2022 13:32:25