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softwaredev softwaredev
wrote...
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11 years ago
What is the noble-gas electron configuration for bromine?
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wrote...
11 years ago
you can say
Br - 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5
or...
Br- [Ar] 4s2 3d10 4p5

(the second one is like the short cut way)
wrote...
11 years ago
go to this site
http://www.ptable.com

click on the orbitals tab
move around the periodic table and pay attention to the filling patterns.

notice...
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 fyi)

notice the quantum numbers are electrons are filled?  n,L, mL, ?
notice the pairing of electrons?
? in a box means 1 electron in that particular orbital
?? means 2 electrons with opposite spin in 1 orbital
wrote...
11 years ago
IT IS AS following:-

*1s2,2s2-2p6,3s2-3p6,3d10,as2,4p5


I HOPE ITS RIGHT....
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