Question

which pairs of ionic are isoelectronic?
a)Mg+,Mg2+
b)O2-,F-
c) Na+,O-
d)Cl-,F-

Answer 1

i think O2-,F-
.
.
.

.
r8
or not

Answer 2

O2- and f- ( as both have 10 electrons )
hope it helps...