Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider the hypothetical situation where the azimuthal quantum number, 
, takes value 
is the principal quantum number. Then, the element with atomic number
A
is the first alkali metal B
has a 
-valence subshell C
is the first noble gas D
has a half-filled valence subshell
Text Solution
Verified by ExpertsThe correct answer is:
D
Under hypothetical situation, the value of 
is greater than 
which varies from 
to 
for 
Elements follow the following electronic configuration
Atomic number 
Atomic number 
Atomic number 
Atomic number 
Here atomic number of first noble gas will be 
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