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The atom's stable configuration

  1. Apr 14, 2007 #1
    I am new member of this forum, and I have one question for you. When the atom have 8 electrons in the last shell, why it have stable configuration? What makes the atom to be stable and what makes the atom to be reactive?
    I know few things about this.
    Generally speaking the CH2 molecule is very unstable. The carbon's configuration is:
    1s^2 (means 2 electrons in the orbital), 2s^2, 2px^1, 2py^1, 2pz^0
    So for methane to be produce one of the 2s electrons must go into the 2pz electron and the final configuration of carbon is:
    1s^2, 2s^1, 2px^1, 2py^1, 2pz^1
    so there are 4 bonds. But how that 2s electron went to the 2pz orbital. Where is the energy from?
    Best regards.
  2. jcsd
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