Hydrogen becomes a solid at -434.5 degrees Fahrenheit
It's a solid.
Hydrogen is in a gaseous state at 20 degrees Celsius.
Barium is a solid at 20 degrees Celsius.
Phosphorus is typically a solid at 20 degrees Celsius.
Sulfur is a solid at 20 degrees Celsius.
It's a solid.
Hydrogen is a gas at 20 degrees, Fahrenheit and Celsius, but it you are talking Kelvin, then it is a liquid.
Hydrogen is in a gaseous state at 20 degrees Celsius.
Mercury is a metal that is liquid at 20 degrees Celsius.
Scandium is a solid metal.
Barium is a solid at 20 degrees Celsius.
Phosphorus is typically a solid at 20 degrees Celsius.
Sulfur is a solid at 20 degrees Celsius.
Plutonium is a solid at 20 degrees Celsius. It has a melting point of 639.4 degrees Celsius and a boiling point of 3228 degrees Celsius, so at 20 degrees it would be in a solid state.
At 20 degrees Celsius, cobalt is in a solid state. Cobalt's melting point is 1495 degrees Celsius, so at 20 degrees Celsius it would be solid.
At 20 degrees Celsius, copper is in its solid state. Copper has a melting point of 1,085 degrees Celsius, so at 20 degrees Celsius, it remains a solid metal.
Iodine is a solid at 20 degrees Celsius.