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Question

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


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

The correct option is C $$d$$-block elements
 The element with atomic number (Z) 21 is having the electronic configaration of





1s22s22p63s23p64s2
3d1
as 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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