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  • Which among the following elements has the largest atomic radii (a) Na (b) Mg (c) K (d) Ca

Which among the following elements has the largest atomic radii?
(a) Na
(b) Mg
(c) K
(d) Ca

Answers (1)

Ans (c)
Sol
Atomic radius increases when we move from top to bottom along a group and it decreases when it moves from left to right along a period.
So Potassium has the highest radius as it is left on the periodic table and also at the bottom of a group compared to all the elements in the same group.
Simultaneously it belongs to alkali metals which are highly electropositive and gain inert gas configuration by losing an electron.

Hence option (c) is correct

Posted by

infoexpert27

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