Question

Place the following ions in order from smallest to largest ionic radii: Se2-, Sr2+, Y3+, and Br-.
A.Se2- < Sr2+ < Y3+ < Br-
B.Se2- < Br- < Sr2+ < Y3+
C.Br- < Se2- < Y3+ < Sr2+
D.Y3+ < Sr2+ < Br- < Se2-
E.Sr2+ < Y3+ < Se2- < Br-

Answer

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