Changes

Matter can be converted into [[energy]].  This is what happens during a [[fission]] reaction.  When a Uranium-235 [[atom]] is split apart into a Xenon-134 atom and a Strontium-100 atom, two extra neutrons will result.  But the total mass of the end product is less than the mass of the original atom.  The additional matter has been converted into a massive amount of energy.<ref>http://www.lbl.gov/abc/Basic.html</ref>  

Matter can be converted into [[energy]].  This is what happens during a [[fission]] reaction.  When a Uranium-235 [[atom]] is split apart into a Xenon-134 atom and a Strontium-100 atom, two extra neutrons will result.  But the total mass of the end product is less than the mass of the original atom.  The additional matter has been converted into a massive amount of energy.<ref>http://www.lbl.gov/abc/Basic.html</ref>  

In hadrons such as [[proton]]s and [[neutron]]s the rest mass of the constituent [[quark]]s only account for a tiny fraction of the total mass of the particle.  The rest is the mass-equivalent of the kinetic energy of the quarks and [[gluon]]s which bind them as they move confined within the particle.

In hadrons such as [[proton]]s and [[neutron]]s the rest mass of the constituent [[quark]]s only account for a tiny fraction of the total mass of the particle.  The remainder is the mass-equivalent of the kinetic energy of the quarks and [[gluon]]s which bind them as they move confined within the particle.

==References==

==References==