Question

If the atomic number of an elements is 33, it will be place in the periodic tabe in the
A. first group
B. fifth group
C. third group
D. seventh group

Answer 1

Correct Answer - B
`33:1s^(2),2s^(2).2p^(6),3s^(2),3p^(6),4s^(2),3d^(10),4p^(3)` it its valence shell `5underset(bar)(e)^(-)` are present so it is fifth (A) group elements.