Nurturing Life Sciences
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#XL - T Zoology
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#XL - Q Biochemistry
Sulfur normally exists as an eight-atom molecule, S8, while phosphorus exists as a four-atom molecule, P4
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Some elements exist naturally as molecules. For example, hydrogen and oxygen exist as two-atom molecules.
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A molecule is the smallest part of a substance that has the physical and chemical properties of that substance. In some respects, a molecule is similar to an atom. A molecule, however, is composed of more than one atom.
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Molecules are groups of atoms that behave as a single unit.
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Fluorine (the most electronegative element) is assigned a value of 4.0, and values range down to cesium and francium which are the least electronegative at 0.7
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Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The Pauling scale is the most commonly used.