NEET Questions Solved


Elements with electronic configuration 1s2,2s22p6, 3s23p63d10, 4s24p64d10, 5s25p3 belongs to the ...... group of periodic table.

(a) 3rd

(b) 5th

(c) 7th

(d) 2nd

(b) The differentiating electron enters in p-sub shell, hence, it is a p-block element and for p-block element, the group is determined as the total no. of electrons present in outer shell.

Difficulty Level:

  • 15%
  • 68%
  • 14%
  • 5%