Tansition Metals

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Issue:

Science

 

Written by:

James D

 

Date added:

October 13, 2014

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 565

 

Was viewed:

5123 times

 

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Essay content:

But once the electrons are actually in their designated shell the energy order changes and the 4s electrons now have a higher energy level than the 3d. And because the electrons in the highest energy level are removed first when ions are formed, the 4s electrons will be removed first. Ni2+: - 1s2 2s2 2p6 3s2 3p6 3d8 Cr3+: - 1s2 2s2 2p6 3s2 3p6 3d3 Zinc Zn only forms Zn2+ ions as it has full 3d sub shell and the 3d10 arrangement is a very stable arrangement...
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But once the electrons are actually in their designated shell the energy order changes and the 4s electrons now have a higher energy level than the 3d. And because the electrons in the highest energy level are removed first when ions are formed, the 4s electrons will be removed first. Ni2+: - 1s2 2s2 2p6 3s2 3p6 3d8 Cr3+: - 1s2 2s2 2p6 3s2 3p6 3d3 Zinc Zn only forms Zn2+ ions as it has full 3d sub shell and the 3d10 arrangement is a very stable arrangement...
displayed 300 characters

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