How many electrons does barium have to give up to achieve a noble-gas electron configuration?
(See answer below)
go to this site
click on the orbitals tab
move around the periodic table and pay attention to the filling patterns.
the left 2 columns fill the "s" orbitals?
the right 6 columsn fill the "p" orbitals?
where are "d" [ and "f" orbitals?
the row # vs the principle quantum number for s and p electrons?
(that's the # before the s and p.. 2s.. 2p.. 3s.. 3p... etc ...
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