Chemistry 9701 · AS & A Level · 1.1

1.1 — practice question

Caesium and barium both lie in Period 6 of the Periodic Table. Which row is right?

  • Alarger ionic radius: $\text{Ba}^{2+}$; higher melting point: barium
  • Blarger ionic radius: $\text{Ba}^{2+}$; higher melting point: caesium
  • Clarger ionic radius: $\text{Cs}^{+}$; higher melting point: barium
  • Dlarger ionic radius: $\text{Cs}^{+}$; higher melting point: caesium

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