Gas at room temperature.
Hydrogen's normal phase is a gas at room temperature and pressure.
That would depend on temperature and pressure. At atmospheric pressure and room temperature it will be a gas.
If it were a solid at room temperature, then that would be the state of matter. However, hydrogen is NOT solid at room temperature. It is a gas and that would be the state of matter.
Gas. Unquestionably. Consider the alternative: Liquid? Solid? Maybe plasma? Liquid and solid hydrogen only produced in near the absolute temperature. Plasma on the other hand requires enormous temperature and pressure (Sun).
solid at room temperature
Be is solid at Room temperature
helium is a gas at room temperature
Gas at room temperature
Fluorine is a gas at room temperature.
Oxygen is a gas at room temperature.
Sulfur is a solid at room temperature.
At normal room temperature, oxygen is a gas.