Chemistry · May / June 2018 · Paper 11 · Question 26

Which statement about the elements in the Periodic Table is correct?

1. AAn atom of potassium, K, has more protons than an atom of argon, Ar.
2. BElements in the same period have similar chemical properties.
3. CElements that are non-metals form only covalent bonds with other elements.
4. DOn descending Group I from lithium, Li, to caesium, Cs, the metals become less reactive.

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