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September 26th, 2013

26/9/2013

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Started Chemistry - The Atom.

An Atom is the the smallest part of an element which still maintains the properties of that element.


We learned also that:
  • Protons are found in the nucleus, have a positive charge and a mass of 1 atomic  mass unit.
  • Neutrons are found in the nucleus, have no charge and a mass of 1 atomic mass unit.
  • Electrons are found orbiting the nucleus, have a negative charge and a mass 1/1840 atomic mass units.
Picture
HW - Draw Bohr Models of Boron, Sulfur and Argon atoms.
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