CHM 103 Lecture Notes - Carbon-12, Unified Atomic Mass Unit, Chemical Formula

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25 Sep 2013
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A unique symbol is used to represent each element formulas are used to represent compounds. A symbol is assigned to each element. the symbol is based on the name of the element and consists of one capital letter or a capital letter followed by a lowercase letter. Some symbols are based on the latin or german name of it (know the latin ones) Gas, liquid, solid as you go down the group. Human body has a high tolerance for halogens. A compound formula consists of the symbols of the elements found in the compound. Each elemental symbol represents one atom of the element. If more than one atom is represented, a subscript following the elemental symbol is used. Neutrons the weight is the sum of the protons and electrons. Atomic number of an atom the atomic number of an atom is equal to the number of protons in the nucleus of the atom.

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