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The electronegativity
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The ability of an atom to attract electrons in a covalent bond
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The pauling scale (values)
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0.7 to 4.0
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The higher the number on the pauling scale
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The stronger the pull on electrons of the bond
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What element has the weakest pull and what is that number
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Cesium 0.7
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What element has the strongest pull and what is its number?
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Flourine 4.0
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What is the periodic trend of electronegativity on the periodic table?
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More electronegative as you move up and to the right
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What is the electronegativity difference between ions?
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Greater that 1.9
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What is the difference in elctronegativity between sodium and chloride?
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2.1
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What would be the electronegativity difference in a convalent bond?
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Less than 0.5
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CH4 is what kind of bond
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Covalent
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What is the type of bond when the diffrence in electronegativity is between 0.5 and 1.9?
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Polar covalent
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What kind of bond is water?
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Polar covalent (1.4)
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Intermolecular forces are not applicable to
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Gases (see definition of ideal gas)
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Intermolecular
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Between different molecules
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Intermolecular forces can relate to
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Boiling point, melting point, solubility, vapor pressure
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