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.