methane and ethane
hydrogen, helium, oxygen.
Some gases that are present on Mercury are hydrogen, helium, oxygen and traces of ionized calcium, potassium, sodium, magnesium, and argon. There is a miniscule amount of water vapor present.
No its not because of its unruley poison scent if you inhale it or swallow it you could get serious illness or death.
the reason there are no gases in mercury the molecules moves fast at high temperature
No it doesnt!the reason behind this is that Murcury has no atmosphere so it is unable to hold any sort of gas.