Chemistry 0620 · IGCSE · Group I properties

Group I properties — practice question

Sodium and rubidium are elements in Group I of the Periodic Table. Which statement is correct?

  • ASodium atoms have more electrons than rubidium atoms.
  • BSodium has a lower density than rubidium.
  • CSodium has a lower melting point than rubidium.
  • DSodium is more reactive than rubidium.

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