Chemical Bond: The attractive force responsible for
holding molecules together.
Octet Rule: The tendency of every element to acquire
eight electrons in the outermost shell.
Covalent Bond: Bonds formed due to the presence of
unpaired electrons due to opposite spins.
Hybridisation: The mixing and recasting of atomic orbitals
to produce equal number of orbitals with same size,
shape and energy is called hybridisation.
Polar Covalent Bond: In a covalent bond formed with atoms
with different electronegativities, the shared electron pair shifts towards
the atom having higher electronegativity.
Bond Energy: The average amount of energy required per
mole of the gaseous compound to break a particular bond in a molecule to
obtain free radicals or atoms.