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 is incorrect. All alkali metals have a single valence electron, not two.
Alkali metals are found in Group 1 of the periodic table, and each one has a single valence electron in its outermost electron shell.
This single electron makes them highly reactive, as they tend to lose this electron easily to achieve a stable electronic configuration.
Due to having one valence electron, alkali metals are very reactive, especially with water and oxygen.