Name different blocks of elements in the periodic table. Give general electronic configuration of each block





Q.44:- Name different blocks of elements in the periodic table. Give general electronic configuration of each block.

 

Answer:-
Elements in the long form of the periodic table have been divided into four blocks i.e., s, p, d and f. This division is based upon the name of the orbital which receives the last electron. General electronic configuration of s-block elements: ns1 – 2 where n = 2 – 7
p-block elements: ns2 np1- 6 where n = 2 – 6
d-block elements: (n -1) d1 -10 ns0- 2 where n = 4 – 7
f-block elements: (n – 2)f0-14(n -1) d0-1 ns2 where n = 6 – 7