Which of the following sequences contain atomic numbers of only representative elements ?

Options

A. `3, 33, 53, 87 `
B. `2, 10, 22, 36 `
C. `7, 17 , 25 , 37 , 48 `
D. `9, 35 , 51, 88`

Answer

A, D

Explanation

Elements of s- and p-block elements are called representative elements , elements of d-block (Z=21-30 , 39 -48 , 57 and 72 -80 and 89 and 104 -112 ) are called transition elements while those of f-block ( with Z = 58 -71 and Z= 90 -103) are called inner transition element . In the light of this division elements listed under option ( a) and option ( d) are all representative elements.