Saturn has the lowest density of any planet, terrestial or gas giant.
At the standard temperature and pressure, hydrogen gas has the lowest density.
Hydrogen has the lowest density of all elements. Density of it is 0.084 gm-3. It is a diatomic gas.
Harmful gas
Neptune is the outer planet that is not a gas giant. It is classified as an ice giant due to its composition, which includes a significant amount of water, ammonia, and methane ices in addition to hydrogen and helium.
This gas is hydrogen.
I would think that of these Jupiter would have the lowest density, since Mercury, Venus and Mars are all solid, rocky planets like Earth while Jupiter is a gas giant composed mainly of Hydrogen.
All four outer planets, Jupiter, Saturn, Uranus, and Neptune are gas giants.
No planet - There are dwarf planets
The outer four planets, Jupiter, Saturn, Uranus, and Neptune are all Gas Giants.So Neptune is a Gas Giant.
Gas planet, giant planet or outer planet.
The four outer (gas giant) planets are; Jupiter, Saturn, Uranus and Neptune.
The state of matter with the lowest density is gas. Gases have molecules that are far apart and are free to move around in any direction, resulting in a low density compared to liquids and solids.