1.

Which of the following sequences contain atomic numbers of only representative elements?(i) 3, 33, 53, 87(ii) 2, 10, 22, 36(iii) 7, 17, 25, 37, 48(iv) 9, 35, 51, 88

Answer»

(i), (iv)

(i) 3, 33, 53, 87

(iv) 9, 35, 51, 88



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