Chlorine is a gas at everyday temperatures.
Copper's state of matter is naturally a solid. But it can melt, and boil.
At -40 degrees Celsius, chlorine is in a solid state. Chlorine freezes at -101 degrees Celsius and below, so at -40 degrees Celsius, it would be a solid.
Chlorine is a solid at 0 degrees celsius because it's also a solid at 25 degrees celsius.
chlorine is a gas
Chlorine is a diatomic gas at room temperature and pressure, so it is in the gaseous state.
The original state of matter of chlorine is gas. Chlorine is a halogen, of which group there are only one element is solid at room temperature (Bromine) and one a liquid (Iodine).
At 20 degrees Celsius, chlorine is in a gaseous state. Chlorine has a boiling point of -34 degrees Celsius at atmospheric pressure, so at 20 degrees Celsius, it would be a gas.
Tin is a metal that is solid at room temperature. It melts and becomes a liquid at 449 degrees Fahrenheit.
At 21 degrees Celsius, chlorine is a gas. Chlorine has a boiling point of -34 degrees Celsius and a melting point of -101 degrees Celsius, so at room temperature it exists in its gaseous state.
The temperature for freezing is 0 degrees Celsius or 32 degrees Fahrenheit. When a substance reaches this temperature, it changes from a liquid state to a solid state. This process is known as freezing or solidification.
Bose-Einstein condensation, only achieved at close to absolute zero or minus 459.67 degrees Fahrenheit.
At "room temperature" - usually considered to be 68 degrees Fahrenheit - mercury is a liquid.