Class 11 Chemistry Classification of Elements and Periodicity in Properties Extended or long form of periodic table

Easy

Where is helium placed in the periodic table and why?

A
Group $18$,Period $1$
B
Group $2$,Period $1$
C
Group $18$,Period $2$
D
Group $1$,Period $1$

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Classification of Elements and Periodicity in Properties

Subtopic

Extended or long form of periodic table

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In the sixth period,the orbitals being filled are :-

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Which elements are considered exceptions in the classification of the periodic table?

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