Subject: Earth at Jupiter's Distance (pls see below for the entire question)

Explain why so little hydrogen is detected in the Earth's atmosphere.  If the 
Earth were at Jupiter's distance from the Sun, would you expect it to have more 
atmospheric hydrogen?  Would it have as much as Jupiter?  I think I know part 
of the answer, but please correct me or add to it.  The earth's atmosphere has 
only a little hydrogen since hydrogen is very light and it tends to move 
farther away from Earth (that's why Jovian planets have more hydrogen).  If 
Earth were at Jupiter's distance from the Sun, I will expect it to have more 
atmospheric hydrogen, since the distance from the Sun is farther than the 
distance from Earth to Sun.  However, I won't expect it to have as much 
hydrogen as Jupiter since its mass and volume is less than Jupiter.

Re: Earth at Jupiter's Distance (pls see below for the entire question)