In the articles on this site you may encounter difficult words and
phrases, most of the time you can find these back in the
dictionary. A word that can be found is indicated as a link, you
can view its description by clicking on it.
In a decomposing reaction it is possible to split the atoms in a
molecule, and regroup them. This makes it possible to split a water
molecule (H2) into hydrogen (H2)O and oxygen
When atoms are in a very hot area, with temperatures well over a
thousand degrees celsius, the atoms have the ability to fuse with
each other into another atom. When they do, a lot of energy is
released. This is the process which is used in the sun for it's
All atoms are build up out of a core with neutrons (0) and protons
(+) and an outer layer build up out of electron (-). The number of
electrons and protons in an atom are equal, so the electric charge
should be zero. Sometimes an atom misses a proton or electron, in
this case the charge is + or - and the atom is called an ion.