Which among the following elements has the largest atomic radii? (a) – InterviewSolution

1.

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

Answer»

The answer is (c) K

K has largest atomic radii because atomic radii decreases from left to right along a period.
This is because of increase in nuclear charge which tends to pull the electron closer to the nucleus and reduces the size of the atom.
Hence K has the largest atomic radii.

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