Which among the following elements has the highest density?

Osmium

The correct answer is option 3. Osmium.

Among the options provided, the element with the highest density is Osmium.

Osmium (Os) is one of the densest elements known, with a density of approximately 22.59 grams per cubic centimeter \((g/cm^3)\) at room temperature and pressure. It is denser than tungsten (W), fluorine (F), and hydrogen (H).