From owner-chemistry@ccl.net Mon Jul 9 14:45:00 2012 From: "Flick Coleman wcoleman:-:wellesley.edu" To: CCL Subject: CCL: another blog - This on the anomalous configuration in Cr Message-Id: <-47187-120709135634-24200-ozbKPj+hPPU8JvLVWHrDrQ[-]server.ccl.net> X-Original-From: Flick Coleman Content-Type: multipart/alternative; boundary=f46d043c062e322eb404c469559f Date: Mon, 9 Jul 2012 13:55:46 -0400 MIME-Version: 1.0 Sent to CCL by: Flick Coleman [wcoleman**wellesley.edu] --f46d043c062e322eb404c469559f Content-Type: text/plain; charset=ISO-8859-1 Here are two activities that I always have students do to disabuse them of the idea that there is something "special" or "anomalous" about Cr and Cu. 1. Find the ground state configurations for all elements in the first three transition series, and determine how many do not follow the Aufbau Principle or whatever "rules" you have previously learned. 2. Comment as completely as you can on the ground state configuration of Ni, Pd and Pt. Cheers, Flick _______________ William F. Coleman Professor of Chemistry Wellesley College Wellesley MA 02481 On Mon, Jul 9, 2012 at 1:03 PM, Eric Scerri scerri(-)chem.ucla.edu < owner-chemistry_._ccl.net> wrote: > > > > Dear Colleagues, > Now a blog on the anomalous configuration in chromium and how to explain > it or perhaps how not to explain it. > > > > > http://ericscerri2.blogspot.com/ > > > > comments welcome. > > either here or on the blogsite. > > > > all the best > > eric scerri > > > > ericscerri.com/ > > --f46d043c062e322eb404c469559f Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Here are two acti= vities that I always have students do to disabuse them of the idea that the= re is something "special" or "anomalous" about Cr and C= u.

1.=A0 Find the ground state configurations for all elements in the firs= t three transition series, and determine how many do not follow the Aufbau = Principle or whatever "rules" you have previously learned.=A0
2.=A0 Comment as completely as you can on the ground state configuratio= n of Ni, Pd and Pt.


Cheers,

Fl= ick

_______________
William F. Coleman
Profess= or of Chemistry
Wellesley College
Wellesl= ey MA 02481





On Mon, Jul 9, 2012 at 1:03 PM, Eric Sce= rri scerri(-)chem.ucla.edu <o= wner-chemistry_._ccl.net> wrote:
=A0

Dear Colleagues,
Now a blog on the anomalous configuration in chromium and how to explain it= or perhaps how not to explain it.

>
> http://= ericscerri2.blogspot.com/
>
> comments welcome.
> either here or on the blogsite.
>
> all the best
> eric scerri
>

ericscerri.com/

<= /blockquote>

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