Suggest why there is no hydrogen in our atmosphere why does the moon have no atmosphere
Answers
Isn't it surprising that Hydrogen which is the most abundant element in the universe is almost absent in the Earth's atmosphere ? The reason for this is that hydrogen being the lightest element has the lowest molecular mass and highest molecular speed and diffusivity. At room temperature a small fraction of hydrogen molecules can reach escape speed and leave the atmosphere permanently. When this process continues over millions of years the concentration of the hydrogen in the atmosphere falls to almost nil , as is the case with the Earth. To have hydrogen in the atmosphere the escape speed should be large, as is the case of Jupiter. The Moon has no atmosphere due to it's low escape speed. In fact the composition of the atmosphere is an indicator of the size of the planet. Greater the fraction of lighter gases in it's atmosphere , larger is the planet.
Due to gravity.
Explanation:
Issac Newton found a apple falling from the tree.
After eating the apple the apple went to his brain.
The apple gave the idea about gravity to Newton.
And he told to the people about gravity.
The Apple that Newton atedoes not has hydrogen In it.
Therefore the apple said to Newton that the atmosphere has no hydrogen.
It's so simple that why moon have no atmosphere.
This is because there is no Newton in Moon.
If Newton went to Moon there will be gravity.
Another reason for that is there is no apple tree in Moon