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  • ...adioactive isotope of helium. The helion, the atomic nucleus of a helium-3 atom, consists of two protons but only one neutron, in contrast to two neutrons
    5 KB (819 words) - 04:02, 21 January 2009
  • ...ectron, distributed around a positively charged proton (the nucleus of the atom). Thus, is the first element on the periodic table.
    4 KB (671 words) - 04:02, 21 January 2009
  • ...calculations, 1.67 MeV. I got this by subtracting the mass of a Beryllium atom from the mass of 2 Helium-4 atoms and a neutron. This is in approximate agr
    5 KB (805 words) - 10:22, 1 September 2010
  • ...s and nuclear chemistry, nuclear fusion is the process by which multiple [[atom]]ic particles join together to form a heavier [[nucleus]]. It is accompanie
    1 KB (197 words) - 04:02, 21 January 2009
  • ...ions generate power by a chain reaction in which the nuclear fission of an atom releases neutrons which cause other atoms to undergo fission. This allows t
    10 KB (1,596 words) - 04:43, 24 August 2010