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Electron Structure of Ions and Noble Gases.
The noble
gases are in group 0 of the
periodic
table.
They have a full
outer shell of electrons.
They are stable and will not react with other
atoms.
Atoms
which have lost or gained electrons to
form ions
will have a full outer shell.
The stable Li+ ion has the same electron structure as Helium.
The stable Mg2+ ion has the same
electron structure
as the stable Na+ ion and the stable
O2- ion.
It is the electron structure of
Neon (see previous pages).
The stable Cl- ion has the same electron structure as Argon.
The electron
structure of
Helium is 2.
Neon is 2, 8.
Argon is 2, 8, 8.
Stable ions are said
to have a noble gas electron structure.
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