Question

is there any relationship between atomic number, mass number, isotopes, isobars and valency of an atom? explain why​

Answer 1

Explanation:

Atomic number is the total number of protons present in an atom. Isotopes also mean atoms with same atomic number but different mass number. ... Also, isobars means atoms with same mass number but different atomic number. Whereas valency of an atom means the number of electrons present in the outermost shell.

Answer 2

Explanation:

this is correct answer