Chemistry 9701/12 — May/June 2015

Use of the Data Booklet is relevant to this question.

In which option do all three particles have the same electronic configuration and the same number of neutrons?

Options

A   $^{15}\text{N}^{3-}$   $^{16}\text{O}^{2-}$   $^{19}\text{F}^{-}$
B   $^{18}\text{O}^{2-}$   $^{19}\text{F}^{-}$   $^{20}\text{Ne}$
C   $^{19}\text{F}^{-}$   $^{20}\text{Ne}$   $^{23}\text{Na}^{+}$
D   $^{22}\text{Ne}$   $^{23}\text{Na}$   $^{24}\text{Mg}^{2+}$