Filetype Power Point PPTX | Posted on 31 Aug 2022 | 4 years ago
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Covalent Bond
Chemical bond formed by the
sharing of a pair of electrons
Orbital Overlap
Shared pairs are actually orbitals
of two atoms overlapping
Why Covalent Bonds Exist
Atoms share electrons when their
orbitals overlap
When orbitals overlap, electrons
are simultaneously attracted to
both nuclei
Bond Length
As atoms come closer, increasing
electron density results in a decrease in
potential energy of system
As atoms become very close,
electrostatic repulsion between nuclei
increases
Bond distance is a compromise between
increased overlap drawing them
together and increased repulsion
pushing them apart
There is an optimal bond distance
where energy is lowest
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