Question

why are the outer planets of the solar system lighter?​

Answer 1

Since the inner planets didn't have enough mass to hold on to these light gases, their hydrogen and helium floated away into space. The Sun and the massive outer planets had enough gravity to keep hydrogen and helium from drifting away.

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Answer 2

Answer:

1. why are the outer planets of the solar system lighter?

ANS.

Since the inner planets didn't have enough mass to hold on to these light gases, their hydrogen and helium floated away into space. The Sun and the massive outer planets had enough gravity to keep hydrogen and helium from drifting away.

Explanation:

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