Question

Differentiate between these; 1. Isobars and isotopes 2. Valence electrons and valency 3. Atomic number and mass number​

Answer 1

Answer:

1.isotopes have same atomic number whereas isobars have different atomic number

2.Valence electrons is the number of electrons in the outermost shell whereas valency is the combining capacity of an atom.

3.Atomic number is the number of protons present in an atom whereas mass number is the number of neutros and protons present in an atom