Why is the nobel-gas inner core abbreviation for Yb not f13?

Subject: Why is the nobel-gas inner core abbreviation for Yb not f13?

Date: Fri Oct 15 22:08:47 1999
Posted by No name entered.
Grade level: 10-12 School: No school entered.
City: Franklin State/Province: TN Country: USA
Area of science: Chemistry
ID: 940039727.Ch

Message:


What I'm really trying to ask is why is the nobel-gas inner core 
abbreviation for the element Yb [Xe]6s2 4f14 and not [Xe]6s2 4f13?  I was 
under the impression that only the inner- transitions were in the f 
orbitals, yet the only way to reach the correct configuration (that I 
can see)for Yb is if La is also has f orbitals!?
                                         Please help-
                                              Terribly Confused

Re: Why is the nobel-gas inner core abbreviation for Yb not f13?

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