Q. The element with atomic number 117 if discovered would be placed in
A) Noble gas family
B) Alkali family
C) Alkaline earth family
D) Halogen family
Explanation
(d)
117=[Rn]$5f^{14},6d^{10},7s^{2}7p^{5}$
Since, the last electron enters in p-orbital, it will be a p-block element and its group number =5+2=7 (VIIA)
So, the element would be the placed in halogen family.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.