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what is the electron configuration for ion cu2+ and cu1+???why is cu2+ is more stable???

2006-09-16 05:46:13 · 9 answers · asked by pdforta 2 in Science & Mathematics Chemistry

9 answers

Cu 1+:

[Ar] 3d10 4s2

Cu 2+:

[Ar] 3d10 4s2 4p1

Although this is apparently contradictory to the usual rule, Cu 2+ really IS more stable than Cu 1+. This anomaly has been attributed to the Jahn-Teller effect which is the lengthening of the axial ligand bonds in a transition metal complex. I'm not sure what that means, but that's the answer.

Read more about it here:

http://en.wikipedia.org/wiki/Jahn-Teller_Effect

2006-09-16 05:48:51 · answer #1 · answered by عبد الله (ドラゴン) 5 · 0 50

Copper 2 Electron Configuration

2016-12-26 16:02:01 · answer #2 · answered by suzette 3 · 0 0

Copper Ion

2016-11-08 21:39:46 · answer #3 · answered by Anonymous · 0 0

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RE:
what is the electron configuration for ion copper 1 and 2?
what is the electron configuration for ion cu2+ and cu1+???why is cu2+ is more stable???

2015-08-18 09:37:21 · answer #4 · answered by Marget 1 · 0 0

The answer from عبد الله (ドラゴン) is wrong- that answer is for Cu1- and Cu2- !
As Cu is a transition metal with electron config [Ar] 4s1 3d10,
the ion of a transition metal loses its 4s electrons before 3d electrons;
so would be [Ar] 3d10 for Cu+
[Ar] 3d9 for Cu2+.
Ions with a bigger charge attract their outer electrons more strongly, so Cu2+ not only has a larger ionisation energy but is more stable.
(I don't know if it's also anything to do with nucleus size affecting stability- look it up)

2013-12-11 05:37:21 · answer #5 · answered by ? 3 · 12 0

When you do electron configurations, you may start at the beginning: Co = 1s², 2s², ............ or at the previous inert gas (in brackets): Co = [Ar], 4s², 3d^7

2016-03-20 07:53:40 · answer #6 · answered by Anonymous · 0 0

the below answer is wrong. its 1s2 2s2 2p6 3s2 3p6 3d9 for a copper(II) ion.

2013-10-01 18:29:34 · answer #7 · answered by Mike 1 · 1 2

Sorry but the previous answer was wrong. Just count the number of electrons.
The correct answer is:-
Elemental Cu [Ar] 3d10 4s1
Cu 1+ is [Ar] 3d10
Cu 2+ is [Ar] 3d9

I don't know why Cu2+ is more stable but I suspect it's something to do with the stability of complexes according to the ligand field theory.

2006-09-16 06:13:08 · answer #8 · answered by christopher N 4 · 33 3

Was wondering the same question

2016-08-14 04:43:53 · answer #9 · answered by Anonymous · 0 0

I haven't the foggiest

2006-09-22 22:34:06 · answer #10 · answered by Anonymous · 0 6

huh? umm.....i would have to say put a dangerous monster inside it.

2006-09-16 05:50:44 · answer #11 · answered by Jimmy F 1 · 1 4

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