Question

017. Mg2+ is isoelectronic with
O a) Caz
O b) Na
O c) Zna-
O d) Cuz​

Answer 1

Answero b) Na

Explanation:

Correct option is

b)

Na

+

Isoelectronic species have the same number of electrons.

Mg has atomic number =12 which is its total number of electrons.

Mg

2+

=10 electrons

Na

+

contains 10 electrons.

Hence, they are isoelectronic species.

Answer 2

Explanation:

Mg2+ and Na+ both have 10 electrons hence, they are isoelectronic species.