Why is Neptune denser than Saturn?

It has a greater proportion of hydrogen than Saturn. It is not denser than Saturn. ts hydrogen is molecular, whereas Saturn's hydrogen is atomic. The extra mass of Neptune compresses its interior to a greater extent than that of Saturn. It has a different composition than Saturn, including a higher... show more It has a greater proportion of hydrogen than Saturn.
It is not denser than Saturn.
ts hydrogen is molecular, whereas Saturn's hydrogen is atomic.
The extra mass of Neptune compresses its interior to a greater extent than that of Saturn.
It has a different composition than Saturn, including a higher proportion of hydrogen compounds and rocks
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