Number of species that are isoelectronics with `Sr^(2+)` ion are four.

Number of species that are isoelectronic with Ar is.

Number of species that are isoelectronic with Ar is.

Number of species that are isoelectronic with F^(ɵ) ion are five.

Name five species that are isoelectronic with F^(ɵ) ion

Species which are isoelectronic with OF_(2) are

Species which are isoelectronic with OF_(2) are

Name the species that will be isoelectronic with Mg^(2+)

What do you understand by the isoelectronic species ? Name a species that will be isoelectronic with each of the following atoms or ions. Ca^(2+)