Question

Out of two elements X and Y which has bigger atomic...
1) X has atomic number is equals to 18 and atomic mass = 14
2) Y has atomic number = 20 and atomic mass = 40

Answer 1

Answer:

y has bigger atomic value

Answer 2

Answer:

Radius of Y is bigger than that of X. This is because in X, the number of shells in Three (2,8,8) while in Y it is four (2, 8, 8, 2)

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