The atmospheric composition of which planet is 82.5% #H_2#, 15.2% #He#, and 2.3% #CH_4#?

1 Answer
reudhreghs
Apr 3, 2016

Uranus.

Explanation:

There are also trace amounts (~0.007%) of hydrogen deuteride, which is properly written #H^2H# but normally is simply #HD#. It is a compound of the two isotopes of hydrogen: hydrogen-1 and deuterium.

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