It is mostly hydrogen, helium, water and silicates.
There is no such thing as a "surfaceinterior".
80% hydrogen, 18.5% helium, and 1.5% methane.
The Neptunes was created in 1990.
Neptunes rings are made up out of gas.
neptunes gravity is high
Neptune is made up of mostly gas.
The chemical formula of cysteine is C3H7NO2S.
Neptune is made up of: 74% hydrogen, 25% helium and 1% methane.
The chemical symbol represent a chemical element.
Oxygen, as O3.
It is not a chemical change, unless you heat it sufficiently to make it catch fire.
hydrogen and helium