What color element symbol designates elements that are a gas at a given temperature? ?

These elements are red. They are typically gaseous at normal temperatures: some examples can include oxygen, hydrogen, and the noble gases (neon, argon, krypton). These elements all use the concept of STP (standard temperature and pressure) as their baseline: 1 atmosphere of pressure and 0 degrees Celsius.

The answer is red. The color red element symbol, designates or categorizes elements, which are known to be a gas at a given or designated temperature. One of the elements that is categorized to be in the red element in the Helium.

Yes you are correct use the scientific method