Question

Which of the following is expressed to have the smallest radius?
(a) p^3- (b) S^2-
(c)Cl- (d) Ca^2+
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Answer 1

Answer:

(b) S^2-

Explanation:

Sulphur because in modern periodic table it is most electro-negativity elements, if electron in outermost orbit is more than no.of proton while increase, then the size of the atom became smaller. Therefore, sulfur(S^2-) have smallest radius from above mention following.