carbon
Arsenic
The element, Selenium, is a solid at room temperature.
Astatine is a radioactive element that is expected to exist as a solid at room temperature. It has a very short half-life and is not found in nature in significant quantities, making it difficult to study its physical form at standard conditions.
nonmetal it is a gas
No, oxygen is a gas at room temperature. (Also, oxygen is a nonmetal at any state)
Sodium is a metal. It is a solid at room temperature and pressure.
This varies depending upon which nonmetal you are asking about. Chlorine is a gas at room temperature, but bromine is a liquid and carbon is a solid.
Br is a liquid.Carbon,Sulphur,Posphorus,Selenium are solid
Silver is a metal and under normal circumstances, a solid.
This nonmetal is a halogen - bromine.
Presumably, phoshophorus at room temperature, would be at ... room temperature. It would be solid and melt at 44.2°C (white phosphorus: 111.56°F) or 610°C (black phosphorus: 1130°F)
One element with four letters that is not solid at room temperature is iodine. It is a purple-black solid that sublimes into a purple gas at room temperature.