Which of the following sequences contain atomic numbers of only repres

1.	Which of the following sequences contain atomic numbers of only representative elements ?
Answer» 3,33,53,87 2,10,22,36 7,17,25,37,48 9,35,51,88 Solution :ELEMENTS of s and p-block elements are CALLED REPRESENTATIVE elements. Elements of d-block (Z = 21-30, 39-48, 57 and 72-80, 89 and 104-112) are called transition elements while those of fblock (with Z 58-71 and Z = 90-103) are called INNER transition elements. With reference to this division, elements listed under option (A) and option (D) are all representative elements.

Discussion