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Atomic Structure

Covalent Bonding - Chlorine.

A chlorine atom has 7 electrons in its outer shell.
Chlorine is in group 7 of the periodic table.
Two chlorine atoms will each share one electron
to get a full outer shell and form a stable Cl2 molecule.

Chlorine is a simple molecule.
 The Formation of a Chlorine Molecule from Atoms.
Each chlorine atom can count 8 electrons in its outer shell
by sharing the two electrons where the shells touch.
These full outer shells are now stable,
and the Cl2 molecule will not react further with other chlorine atoms.
One pair of shared electrons form a single covalent bond.

There are no ions present (no + or - charges) because
the electrons are shared, not transferred from one atom to another.

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