Question

Write the electronic configuration of any one pair of isotopes and isobars.

Answer 1

Isotopes are atoms of the same element. Whose mass number is different but atomic number is the same. Therefore, the electronic configuration of isotopes also remains the same.

Example: Carbon has two isotopes `""_6^12C` and  `""_6^14C`.

	`""_6^12C`		`""_6^14C`
electronic	K	L	K	L
layout	2	4	2	4

[Neutron = Mass Number – Proton]

Isobars - Atoms of different elements with the same mass number but different atomic numbers are called isobars.

Example: `""_20^40Ca`

	`""_20^40Ca`
electronic	K	L	M	N
layout	2	8	8	2

 

	`""_18^40 Ar`
electronic	K	L	M
layout	2	8	8