Identify the metal that is in period 3 of the periodic table

Hydrogen

Explanation:

The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block.

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Period 3 element.

Hydrogen Francium

Radium

Actinium

Rutherfordium

Dubnium