By: Zaron J. Hayes
Hydrogen is the only element that forms compounds in which the valence electrons are in the n = 1 shell. As a result, hydrogen can have three oxidation states, corresponding to the H+ ion, a neutral H atom, and the H- ion.
References - google.
5 Interesting facts and number of protons, neutrons, and electrons.
1.) About 10 percent of the weight of living organisms is hydrogen – mainly in water, proteins and fats.
2.) Hydrogen is believed to be one of three elements produced in the Big Bang; the others are helium and lithium.
3.) We owe most of the energy on our planet to hydrogen. The Sun’s nuclear fires convert hydrogen to helium releasing a large amount of energy.
4.) Hydrogen is the most abundant element in the universe.
5.) Solid, crystalline hydrogen has the lowest density of any crystalline solid.