Which of the following s-block elements is known for forming a protective oxide

Which of the following s-block elements is known for forming a protective oxide layer?

Which of the following s-block elements is known for forming a protective oxide layer?

Correct Answer: Magnesium

Step 1: Understand what s-block elements are. They are found in the first two columns of the periodic table, which include elements like lithium, sodium, potassium, and magnesium.
Step 2: Learn about the protective oxide layer. This is a thin layer of oxide that forms on the surface of some metals, protecting them from further oxidation or corrosion.
Step 3: Identify which s-block elements can form a protective oxide layer. Among the s-block elements, magnesium is known for forming this layer.
Step 4: Conclude that magnesium is the correct answer because it forms a protective oxide layer that prevents further oxidation.

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