Bonding - Electronegativity and Polarity

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Flashcards on Bonding - Electronegativity and Polarity, created by I Shouldn't be awake on 19/04/2018.
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Flashcards by I Shouldn't be awake, updated more than 1 year ago
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Created by I Shouldn't be awake over 6 years ago
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Question Answer
Electronegativity Ability to an atom to attract a shared pair of electrons towards itself
Difference in EN and bond type Cov - 0 Polar cov - 0 ->1.8 ionic > 1.8
What is a pure covalent bond? Bond between two atoms of same electronegavity i.e. H-H
Polar covalent bond Uneven distribution in charge delta -/+ Dipole in a polar covalent bond is a PERMANENT DIPOLE
Draw diagram showing dipoles in CO2 and H2O e.rg
Which molecule is polar? H2O Molecule is asymmetrical, permanent dipoles don't cancel each other
Trends in electronegativity Increase charge = ^ EN Decreased radius = ^ EN Decreased shielding = ^ EN Increases across a period Decreases down a group
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