Bonding - Electronegativity and Polarity

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

Resource summary

	Created by I Shouldn't be awake over 7 years ago