JEE Main 12 Jan 2019 Morning Question 7
Question: The element with Z = 120 (not yet discovered) will be an/a [JEE Main Online Paper Held On 12-Jan-2019 Morning]
Options:
A) inner-transition metal
B) alkaline earth metal
C) alkali metal
D) transition metal.
Show Answer
Answer:
Correct Answer: B
Solution:
Electronic configuration of element Og (118) is
$ [Rn]5f^{14}6d^{10}7s^{2}7p^{6}. $ Thus, next electron will go in 8s-orbital.
Thus, element with Z = 120 will be an alkaline earth metal.
