Select from group the species which has the smallest radius stating ap

1.	Select from group the species which has the smallest radius stating appropriate reason:K+, Sr2+, Ar
Answer» K⁺ = [Ar] Sr²⁺ = [Kr] Ar = [Ar] Here Argon has the smallest radius because on moving down a group, there is an increase in the principal quantum number and thus, increases in the number of electron shells. Therefore, the atomic size is expected to increase. Hence, Argon has the smallest radius.

Select from group the species which has the smallest radius stating appropriate reason:K+, Sr2+, Ar

Answer»

K⁺ = [Ar]

Sr²⁺ = [Kr]

Ar = [Ar]

Here Argon has the smallest radius because on moving down a group, there is an increase in the principal quantum number and thus, increases in the number of electron shells. Therefore, the atomic size is expected to increase. Hence, Argon has the smallest radius.

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Select from group the species which has the smallest radius stating appropriate reason:K+, Sr2+, Ar

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