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Gas
The physical state of Mercury is a LIQUID at 20oC . It is one of only two elements that are liquid at Standard Temperature and Pressure. The other being Bromine.
it is a state at 20 degrees if you don't know go to an other website
At 20 degrees celsius, Yttrium is solid. It's melting point is far above 1000 degrees.
Selenium is a solid at 20 degrees Celsius!
Hydrogen is in a gaseous state at 20 degrees Celsius.
At Room temperature, its a solid
The state of argon at 20 degrees is a gas.
At a temperature of 20 degrees C (or F, for that matter) oxygen is a gas.
At 20 degrees Celsius, wax is typically in a solid state.
20 degrees Kelvin it will be solid 20 degrees Celsius it will be gaseous 20 degrees Fahrenheit it will be gaseous
Sodium is in solid form at 20 degrees Celsius.