13357482
Description
Flashcards by I Shouldn't be awake, updated more than 1 year ago
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Created by I Shouldn't be awake
about 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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