Which of the following statement is NOT correct regarding the alkali metals?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. All the alkali metals have two valence electrons.
The statement that is NOT correct regarding alkali metals is:
All the alkali metals have two valence electrons.
This is incorrect because alkali metals (Group 1 elements) have one valence electron in their outermost shell. Examples include lithium (Li), sodium (Na), potassium (K), etc.