Question

Column I and Column II contains four entries each. Entries of Column I are to be matched some entries of Column II.One or more than one entries of Column I may have the matching with the same entries of Column II.

Answer 1

Isodiaphers: Nuclides having a different number of atomic numbers and mass numbers but the difference between the number of neutrons and number of protons is same.
Isotopes: These are the elements having same atomic number but different mass number.
Isobars are atoms of different elements having the same atomic mass but different atomic number.
Isotones are elements having the same number of neutrons.