Do metals or nonmetals more often a gas at room temperature?
About half of the non-metals are gaseous at room temperature, and pressure.
There are about a 100 or so elements; most of which are metals. All of these metals, with one or two exceptions are solids under the given conditions. Can you think of a metal that is not a solid at room temperature and pressure?
Of the non-metals, of which there are only about 20 or so, there are 12 (or 11) that are gaseous at room temperature and pressure. We can list these: dihydrogen, dinitrogen, dioxygen,