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

The Periodic Table: chemical periodicity — practice question

Why is the ionic radius of a chloride ion greater than the ionic radius of a sodium ion?

  • AA chloride ion has one more occupied electron shell than a sodium ion.
  • BChlorine has a higher proton number than sodium.
  • CIonic radius increases regularly across the third period.
  • DSodium is a metal, chlorine is a non-metal.

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