The period number and group number of tantalum,

CHEMISTRY · Single correct · CBSE · Chemistry · Classification of Elements and Periodicity in Properties · Classification of Elements and Periodicity in Properties

Problem

Z=73

, are respectively (1)

5,7

(2)

6,13

(3)

6,5

(4) None of these

Related theory

Blocks, groups and periods
Classification of Elements and Periodicity in Properties
Electronic Configurations and Types of Elements

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