At 20 degrees Celsius, uranium is a solid metal with a silvery-gray appearance. It has a density similar to that of lead and is a relatively stable element at this temperature. Uranium does not undergo any significant changes in its physical or chemical properties at 20 degrees Celsius.
20 degrees Celsius = 68 degrees Fahrenheit.
At minus 20 degrees Celsius, most liquids will freeze, including water. It is extremely cold and can be dangerous for unprotected skin, leading to frostbite. Vehicles may have trouble starting, and exposed metal can become brittle.
20 degrees Celsius = 68 degrees Fahrenheit 30 degrees Celsius = 86 degrees Fahrenheit.
The temperature difference between -30 degrees and 20 degrees is 50 degrees. Negative 30 degrees is 50 degrees lower than 20 degrees.
Liquid chemical elements at room temperature (20 0C) are Mercury and bromine.
Only two elements on the periodic table are liquids at normal temperature and pressure. They are bromine (Br, atomic #35) and mercury (Hg, atomic #80.)
Hydrogen and Oxygen are gases at 20OC.
At 20 degrees Celsius, argon is a colorless, odorless, and tasteless gas. It is an inert gas that makes up about 1% of the Earth's atmosphere. Argon does not react with other elements under normal conditions.
iodine and Astatine
Most are metals. There are about 5 metaloids and aproximately 20 gas/liquids.
That is a quantitive physical property.
For the chemical elements: hydrogen with 20, 28 K.
The only non-metal element that is a liquid at room temperature I know of is Bromine of group 7.
Boiling at 20 degrees Celsius is a physical property. Chemical properties involve changes in the chemical composition of a substance, while physical properties describe the state or appearance of a substance without changing its composition.
20 degrees centigrade.
20 degrees C is 20 degrees above freezing on the Celsius scale. 20 degrees F is (32 - 20) = 12 degrees below freezing on the Fahrenheit scale. So the answer is 20 F.