Periodic table groups "A" and "B"
Name: craig e tanner
In the periodic table, what is the difference between
the columns labled "A" and "B"?
As a short the columns labeled 'A' are called the
"main-group elements," and all have valence-shell configurations
ns^a np^b (a and/or b could be 0 for some compounds).
The columns labeled 'B' are the transition metals,
and their valence-shell configurations involve d orbitals.
Now please don't ask why one is called A and the other B....
I Just Don't Know.
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Update: June 2012