Which of the following statements is ...

Which of the following statements is INCORRECT ?

A

Alkali metals form monovalent `M^(+)` ion

B

General electrons condifuration of outermost shell of alkaline earth metals is `ns^(2)`

C

In Alkali metals , the differentiating electron enters ns orbital of the atom .

D

Alkaline earth metals occur in nature in free state .

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The correct Answer is:

D

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