Question

Which of the following is expected to have the smallest radius?

A) S2-
B) Ca2+
C) Cl-
D) K+

Answer 1

Answer:

B is the write answer

ca2+

Answer 2

Answer:

Ca2+

Bcoz in this ion, electron are removed. By removing of electron, the electrostatic force increases which lead to decrease in size of atom.

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