Well now, that would depend on what kind of matter you're talking about, wouldn't it.
At room temperature (and room pressure) . . .
-- Oxygen, nitrogen, and helium are in the gas phase.
-- Water, Mercury, and grain alcohol are in the liquid phase.
-- Iron, sugar, and candle wax are in the solid phase.
It is a gas.
zinc's normal phase is a gas
Platinum's state of matter at room temperature would be a solid.
At room temperature, hydrogen is in the gaseous phase.
Solid. This information is on most periodic tables.
Gas at room temperature
Carbon at room temperature is solid.
It is a gas.
just like you
It is a solid.
Neptunium is a solid metal at room temperature.
zinc's normal phase is a gas
Argon is a noble gas and exists as a gas at room temperature.
solid...
Calcium is a solid at room temperature. (See the CRC Handbook of Chemistry and Physics for physical properties.)
Platinum's state of matter at room temperature would be a solid.
At room temperature, hydrogen is in the gaseous phase.