Question

Alkali metal among the following is:

• A. Na
• B. Fe
• C. Mg
• D. Au

Hint:

Alkali metals are in group 1 of the periodic table and include sodium (Na), lithium (Li), potassium (K), and others.

Answer 1

The Correct Option is A

Alkali metals are a group of elements in the periodic table that belong to group 1. These metals are highly reactive and include: - Sodium (Na) - Potassium (K) - Lithium (Li) - Rubidium (Rb) - Cesium (Cs) - Francium (Fr)

Step 1: Sodium (Na).
Sodium (Na) is an alkali metal and belongs to group 1 of the periodic table.

Step 2: Iron (Fe).
Iron (Fe) is a transition metal and does not belong to the alkali metal group.

Step 3: Magnesium (Mg).
Magnesium (Mg) is an alkaline earth metal, not an alkali metal.

Step 4: Gold (Au).
Gold (Au) is a transition metal, and like iron, it is not an alkali metal.

Step 5: Conclusion.
Thus, the correct answer is (A) Na (Sodium).