Question

examples of isoelectronic species

Answer 1

Isoelectronic species refers to the species which have same number of electrons. For e.g. CO and N2 are isoelectronic as both have same number of electrons i.e. 14.

Similarly

$Ne \: \: Na^+ \: \: Mg^{2+} \: \: Al^{3+}$

are isoelectronic with 10 electrons each.

hope it helps