Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

Which option shows all three particles having the same electronic configuration and the same number of neutrons?

  • A$^{15}_{7}\text{N}^{3-}$, $^{16}_{8}\text{O}^{2-}$, $^{19}_{9}\text{F}^{-}$
  • B$^{18}_{8}\text{O}^{2-}$, $^{19}_{9}\text{F}^{-}$, $^{20}_{10}\text{Ne}$
  • C$^{19}_{9}\text{F}^{-}$, $^{20}_{10}\text{Ne}$, $^{23}_{11}\text{Na}^{+}$
  • D$^{22}_{10}\text{Ne}$, $^{23}_{11}\text{Na}^{+}$, $^{24}_{12}\text{Mg}^{2+}$

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