Chemical formula


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Ionic compounds 1

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Chemical formula for methane

Methane is a colorless highly flammable gas that is less dense than air. The methane molecule consists of four hydrogen atoms covalently one carbon atom.

The chemical formula for methane is CH4 which is the simplest hydrocarbon of the alkane series. The molar mass of methane is 16.043 g/mol

Helium is a colorless unreactive gas that is less dense that air. It belongs to the Noble gases which is the last group on the far right of the Periodic table.

All of the Noble gases are chemically unreactive because they contain a complete number of electrons in the outer shell.

Helium gas if often used in party balloons as it is lighter than air.