Chemistry Classification of Elements and Periodicity Extended or Long form of Periodic Table Single Correct MCQ
Published on: August 12, 2026

In modern periodic table, the element with atomic number Z = 118 will be :

A
Uuo ; Ununoctium ; alkaline earth metal
B
Uno ; Unniloctium ; transition metal
C
Uno ; Unniloctium ; alkali metal
D
Uuo ; Ununoctium ; noble gas

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Text Solution

Verified by Experts
The correct answer is:
D

Z = 118 [Rn] 86 5f 14 6d 10 7s 2 7p 6 ; as last electron enters in p-subshell, it belongs to p-block. Thus its group number will be 10 + 2 + 6 = 18. Hence the element is a noble gas.

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