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Topic: Strange valencies!!!  (Read 1438 times)

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Offline seniour_baloch

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Strange valencies!!!
« on: January 07, 2013, 11:49:15 AM »
Zn has a valency of 2+ and it's atomic number is 30 and Fe(ll) has a valency of 2+ as well and it's atomic number is 26. It means Cr and Ni should be in inert form!
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Offline Hunter2

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Re: Strange valencies!!!
« Reply #1 on: January 07, 2013, 01:16:45 PM »
All these elements Zn, Cu, Fe, Cr and others are d-elements and have one oxidation number beside others of +2, because of the 4 s2 orbitals.
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