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

Difficult

Assuming that elements are formed to complete the $7^{th}$ period,what would be the atomic number of the alkaline earth metal of the $8^{th}$ period?

A
$113$
B
$120$
C
$119$
D
$106$

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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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