Understandings● A covalent bond is formed by the electrostatic attraction between a shared pair of electrons and
the positively charged nuclei. ● Single, double, and triple covalent bonds involve one, two, and three shared pairs of electrons respectively. ● Bond length decreases and bond strength increases as the number of shared electrons increases. ● Bond polarity results from the difference in electronegativities of the bonded atoms. Guidance Bond polarity can be shown either with partial charges, dipoles, or vectors. |
Applications and skills● Deduction of the polar nature of a covalent bond from electronegativity values.
Guidance Electronegativity values are given in section 8 of the data booklet. |
Lewis dot structure/ Dot and Cross Diagram
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Polarity
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Covalent bonding and intermolecular forces Kahoot |