Material Chemistry:Atoms and Their Electrons

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Material Chemistry:Atoms and Their Electrons

Atoms are made of three principal particles. Extremely tiny electrons move in a cloud around the outside. They have a negative charge. Inside is the nucleus which is made up of protons and neutrons. The neutrons have no charge and the protons are positively charged. The charge on a proton exactly balances the electrons negative charge. Most of the atom is space, a complete vacuum. The outermost electrons cause chemical reactions and this is what we are going to examine.

  • Added:2006
  • Country:Australia
  • Duration:34
  • Time of update:2011/8/16 14:32:14

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