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- Proton (5009 bytes)
12: |[[Fermion]]
59: ...was an elementary particle. This he named proton, from ''protos'', the Greek for "first". - Helium (36603 bytes)
106: ...a low [[temperature]] separation process called [[fractional distillation]].
108: ...spectroscopy | spectral line]] signature in light from a [[solar eclipse]]. Since then large reserves ...
112: ...0 [[Kelvin|K]] at 1 atmosphere) does it cool upon free expansion. Once precooled below this temperatu...
117: ...istinguish solid from liquid helium since the [[refractive index]] of the two phases are nearly the sa...
122: ...hich prevents random molecular motion ([[heat]]) from masking the atomic properties<!-- ref: ibid -->... - Electron (10516 bytes)
14: |[[Fermion]]
39: ...18(44) [[MeV]]{{inote|http://scienceworld.wolfram.com/physics/ElectronMass.html}}
54: ...rd ''electron'' was coined in 1894 and is derived from the term ''electric'', whose ultimate origin is...
70: ...e vibrations called phonons. When electrons move, free of the nuclei of atoms, and there is a net flow...
74: ...its vicinity, so that the properties one observes from far away are the sum of the bare properties and... - Neutron (7687 bytes)
8: <tr><td>[[Fermion]]</td></tr>
32: ...in this unstable form are known as [[Free neutron|free neutrons]]. The same decay method ([[beta deca...
34: ...ristic of neutrons which most differentiates them from other common [[subatomic particle]]s is the fac...
36: ...close indeed to an atomic nucleus. Consequently a free neutron goes on its way unchecked until it make...
38: ...pondingly slowed. Secondary projectiles resulting from these collisions may be detected, for they are ... - Matter (1902 bytes)
1: ...stituted of [[elementary particles|elementary]] [[fermion]]s. All [[gauge boson]]s (of which the [[photon]]...
5: ...n exhibit properties which are entirely different from those of the bulk material.
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