by atoms not weight,
20 atoms 12/20 = 60%
The percentage of hydrogen on earth is just 0.25%
2%
1%
8.9%
hydrogen
Mass of ammonia is 17. Mass of Hydrogen in it is 3. So the percentage of hydrogen by mass is 17.64%
The percentage of hydrogen in citric acid is 4,198 68 %.
The percentage of hydrogen on earth is just 0.25%
By mole, water is 66.666r% hydrogen but by mass it is about 11.9% hydrogen.
0.25
Hydrogen -1
Hydrogen and Helium
By volume, hydrogen accounts for around 0.000055%.
In naturally occurring hydrogen, most of the mass is that of the hydrogen-1 isotope.
75
2%
1%