What are covalent bonds?
Covalent bonds are a type of chemical bond formed by a shared pair of electrons between atoms.
Covalent bonds tend to occur between non-metal type atoms (metals tend to form ionic bonds which are formed by a transfer of electrons from one atom to the other rather than a sharing of them).
There are single covalent bonds- each atom contributes one electron to the shared pair.
There are also multiple covalent bonds- each atom contributes more than one electron to form 2 or sometimes 3 pairs of electrons.
AS
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