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

The Periodic Table: chemical periodicity — practice question

Using the Data Booklet is relevant to this question. From which particle is it most difficult to remove an electron?

  • A$\text{Cl}^-(g)$
  • B$\text{F}^-(g)$
  • C$\text{K}^+(g)$
  • D$\text{Na}^+(g)$

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