Classification Of Elements And Periodicity In Properties Question 302

Question: If the atomic number of an element is 33, it will be placed in the periodic table in the [RPET 1999; UPSEAT 2001, 02]

Options:

A) First group

B) Third group

C) Fifth group

D) Seventh group

Show Answer

Answer:

Correct Answer: C

Solution:

$ 33,:1s^{2},2s^{2},2p^{6},3s^{2},3p^{6},4s^{2},3d^{10},4p^{3} $ In its valence shell $ 5{{e}^{-}} $ are present so it is fifth group element.