Out of the elements X and Y which has bigger atomic radius ? Give reason to justify your answer. (i) X has atomic number 18 and atomic mass 40.
Out of the elements X and Y which has bigger atomic radius ? Give reason to justify your answer.
(i) X has atomic number 18 and atomic mass 40.
(ii) Y has atomic number 20 and atomic mass 40.
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Radius of Y is bigger than that of X.
In 'X' the number of shells is three while in Y it is four.
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