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Published byMikel Filbin Modified over 10 years ago
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THE ELEMENTS – 117 ELEMENTS; 94 OCCUR NATURALLY ON EARTH. NEW ELEMENTS ARE DISCOVERED FROM TIME TO TIME THROUGH ARTIFICAL NUCLEAR REACTIONS
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CHEMICAL COMPOUND TWO OR MORE ELEMENTS BONDED TOGETHER IN DEFINITE PROPORTION BY MASS
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They form to lower the energy of the entire System, the components of the system become More stable. Example: It is easier on our bodies to lie down than to stand up. Thus, it is nature’s way of allowing the elements to lie down!
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Covalent Bonding: exists when 2 electrons are shared by two non metallic atoms
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Ionic Bonding – results in the attraction between a negative charged ion (anion) and a positive charged ion (cation)
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MOLECULE – 2 OR MORE ATOMS JOINED BY CHEMICAL BONDS; 2 ATOMS OF THE SAME ELEMENT MAY JOIN OR COMBINED ATOMS
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Van der Waal’s Force are weak attractive forces that hold non polar molecules together.
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HYPERLINK ON GECKO FEET Hyperlink for lizard on water
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