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The period number and group number of "T...

The period number and group number of "Tantalum" (Z=73) are respectively:

A

5,7

B

6,13

C

6,5

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
`{:("Period number","group number","Element"),(5,7,Tc),(6,13,Tl),(6,5,Ta):}`
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  12. which must represent an atom in an excited state?

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