Published by:
CGP EDU Academic Team
Published on: August 12, 2026
An element with atomic number 21 is a
A
transition element 
C
halogen
D
representative element.
Text Solution
Verified by ExpertsThe correct answer is:
A
: The electronic configuration of 
is
The last electron enters to 
orbital which means it belongs to ' 
' block elements or transition elements.
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