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Topic: Zeff increase down a grp  (Read 5385 times)

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Offline arlaness

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Zeff increase down a grp
« on: September 05, 2007, 02:57:36 AM »
I was wondering.. it was taught to me that the Zeff increases down the group due to the penatraing power of of orbitals as the n=principal quantum number, value goes up. if that is the case, wont the number of shells added to the atom affect the Zeff? i mean as the no of shells increases, the distance increases too so even if it could penetrate to lets say 1 n lower eg, 4p to 3p, wont e-e repulsion take place?? can someone clear my doubts thanks a lot

Offline arlaness

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Re: Zeff increase down a grp
« Reply #1 on: September 05, 2007, 03:00:03 PM »
hmmm i think i should state the symbols... Zeff stands for effective nuclear charge.. while the 3p and 4p are atomic orbitals

Offline arshitgupta

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Re: Zeff increase down a grp
« Reply #2 on: September 06, 2007, 08:22:02 AM »
zeff decrease down the group but in case of transition elements, it increases

Offline arlaness

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Re: Zeff increase down a grp
« Reply #3 on: September 09, 2007, 12:17:29 AM »
y is that so? i dun understand.. confused... is there any reason for this?

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