Chemistry 9701 · AS & A Level · The Periodic Table: chemical periodicity

The Periodic Table: chemical periodicity — practice question

This question concerns the first ionisation energies of magnesium and neon. Which row is correct?

  • Afirst ionisation energy: $\text{Mg} > \text{Ne}$; type of electron removed: from Mg $p$, from Ne $s$
  • Bfirst ionisation energy: $\text{Mg} > \text{Ne}$; type of electron removed: from Mg $s$, from Ne $p$
  • Cfirst ionisation energy: $\text{Ne} > \text{Mg}$; type of electron removed: from Mg $p$, from Ne $s$
  • Dfirst ionisation energy: $\text{Ne} > \text{Mg}$; type of electron removed: from Mg $s$, from Ne $p$

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