which pairs of elements have similar reactivities.K and Rb,Ca and Ba, Na and CI, He and Kr.?

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2007-04-18 16:22:08 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

The ones that are in the same column in the periodic table, i.e. potassium and rubidium, calcium and barium, and helium and krypton.

2007-04-18 16:25:25 · answer #1 · answered by Lee G 4 · 0⤊ 0⤋

K, Rb and Na

Ca and Ba

Cl

He and Kr

2007-04-18 17:02:19 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋

K and NA

2007-04-18 16:33:19 · answer #3 · answered by Brick 5 · 0⤊ 0⤋