Changes

{{Element | name=Hydrogen | symbol=H | anumber=1 | amass=1.001 amu | noe=1 | class=Gas| cstructure=Unknown | color=Unknown |  }}

{{Element | name=Hydrogen | symbol=H | anumber=1 | amass=1.001 amu | noe=1 | class=Gas| cstructure=Unknown | color=Unknown |  }}

Hydrogen is an element.  It has the atomic symbol H and the atomic number of 1. Hydrogen is the most abundant of all the chemical elements, the universe is composed of roughly 75% hydrogen. However elemental hydrogen existing naturally on [[Earth]] is extremely rare because it combines with other chemicals easily.

Hydrogen is an element.  It has the atomic symbol H and the atomic number of 1. Hydrogen is the most abundant of all the chemical elements, the universe is composed of roughly 75% hydrogen. However elemental hydrogen existing naturally on [[Earth]] is extremely rare because it combines with other chemicals easily.  Hydrogen is The most abundant element in universe.

==Composition of the Atom==

==Composition of the Atom==