Question

# An atom with atomic number $$21$$ belongs to the category of:

A
s-block elements
B
p-block elements
C
d-block elements
D
f-block elements

Solution

## The correct option is C $$d$$-block elements The element with atomic number (Z) 21 is having the electronic configaration of 1s22s22p63s23p64s23d1as tthe differentiating electron entering into the d orbital or subshell the element belongs to d-block elemet and the name of element is Scandium(Sc)Chemistry

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