Lead (Pb) is in Group 14 (IVA) of the periodic table. The only nonmetal gas in this group is carbon (C).

Here's why:

* Group 14: This group is known as the carbon group.

* Nonmetal gas: Carbon exists as a gas at room temperature in its elemental form as CO2 (carbon dioxide).

* Other elements in Group 14: The other elements in this group (silicon, germanium, tin, and lead) are all solids at room temperature.

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