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Molecules Big And Small descarga (3) - Coggle Diagram
Molecules Big And Small 
Electronegativity
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Characteristics
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When moving down each group of the periodic table we can see that there is a decrease in electronegativity
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Dispersion Forces
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Examples
Attraction between the elctrons of one atoms and the protons in the nucleus of a neighbouring atom (London dispersion forces)
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Allotrope
Definition
Each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.
Dipole-dipole forces
Definition
Are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule.