The planet Saturn
A planet's weight does not determine whether it can float in water. It's density is what determines that. Your question should be "Which planet's density is so small that it could float in water?"
SATURN.
So light it would actually float on water.
The low density of Saturn would allow it to float in liquid water.
Saturn
Uranus
Saturn is a gas planet, and if it were possible to place it in water it would float. Not sure if the rings would float, but, the planet itself would.
== == Saturn. With an average density of 0.7 grams/cubic centimeter,density less than that of water it could really float on water.
Saturn would float in water if you could find a big enough tub and the water to fill it.
Saturn has a very low density and it would be able to float on water. The density of Saturn is: 0.687 grams per cubic centimeter.
Saturn could float in water, because it has a density of 0.7 that of water. That is, however, a theoretical construct, because you would need an enormous pool of water, with a gravitational field much larger than anything we have, in order to achieve that state.
the volume of the puri get light weighted and it float on water