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Energy Levels

The atomic nu...

Question

The atomic number of elements of first transition series lie in the range of:

A

19

to

28

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B

20

to

29

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C

21

to

30

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D

22

to

31

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Solution

The correct option is C $21$ to $30$
First transition series i.e., $3 d$ series is from Scandium to Zinc. Atomic numbers are from $21$ to $30$ .

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