* Hydrogen (H2): About 96% of the atmosphere.

* Helium (He): Around 3% of the atmosphere.

These are the two main components, making up the vast majority of Saturn's atmosphere. However, trace amounts of other elements and compounds also exist, including:

* Methane (CH4): Contributes to the planet's yellowish hue and forms clouds.

* Ammonia (NH3): Forms clouds in the upper atmosphere.

* Water (H2O): Likely exists in deep layers, but not as visible clouds.

* Phosphine (PH3): Present in trace amounts.

* Hydrocarbons (C2H2, C2H4, C2H6): Also present in small amounts.

These trace elements and compounds play a role in the planet's atmospheric processes, contributing to its cloud layers, colors, and winds.