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6/20/2009 9:38:00 PM
17
How many valence electrons does Cobalt have?
I think it is 2 because the orbital notation ends with 4s(2) but I have been looking for confirmation on the internet and I am getting different answers. Some sites say that the d orbital must be accounted for, too--so the 3d(7) plus the 4s(2) would equal 9 valence electrons. I am unsure, could I get some clarification, please?
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AHH. Valence Electrons? What do you need to know for? Try Wikipedia.
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[quote][b]Posted by:[/b] r3dapples [quote][b]Posted by:[/b] tmbgrif Thank you, everyone, for helping me with this. It was very kind of all of you.[/quote] if you don't mind me asking, what was this for exactly?[/quote] its my summer work for the AP Biology class I'm taking next year. Its a review of chemistry from the class I took last year and some of the questions involve molecular sructures. They are more in-depth than what I learned during the year so I was having a little difficulty.
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[quote][b]Posted by:[/b] tmbgrif Thank you, everyone, for helping me with this. It was very kind of all of you.[/quote] if you don't mind me asking, what was this for exactly?
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lol, we were doing electronic configuration yesterday, <3 diagonal thingy.
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The valence electrons are the 4s2 and 3d7 electrons. Those are the outer most in the electron cloud.
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Thank you, everyone, for helping me with this. It was very kind of all of you.
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[quote][b]Posted by:[/b] r3dapples after a bit of reading, Cobalt can have an oxidation state from anywhere from 2+ to 4+, although it technically has 9 valence electrons[/quote] oh i think i understand now. the valence electrons aren't necessarily just the ones in the outer shell. cobalt has two in its outer shell, but the seven others in the d orbital are also considered valence electrons. i appreciate the time you took to help, r3dapples.
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I don't know, Chevrolet.com won't tell me.
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[quote][b]Posted by:[/b] MasterBeef12345 Uh use a chemistry textbook?[/quote] i don't have one
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Uh use a chemistry textbook?
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after a bit of reading, Cobalt can have an oxidation state from anywhere from 2+ to 4+, although it technically has 9 valence electrons
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[quote][b]Posted by:[/b] r3dapples [quote][b]Posted by:[/b] tmbgrif I think it is 2 because the orbital notation ends with 4s(2) but I have been looking for confirmation on the internet and I am getting different answers. Some sites say that the d orbital must be accounted for, too--so the 3d(7) plus the 4s(2) would equal 9 valence electrons. I am unsure, could I get some clarification, please?[/quote] you can only have 8 valence electrons. :( & I'm thinking it is 2. Or 1. I think it has 1.[/quote] yeah but don't the elements in the d block have backfilling?
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Oy. Hmm, there are 7 electrons in the 3rd shell, but you said they needed to be accounted for? That can't be right, can it? That's not the outermost shell. I'd guess 2, and wikipedia isn't helping. [Edited on 06.20.2009 1:42 PM PDT]
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[quote][b]Posted by:[/b] tmbgrif I think it is 2 because the orbital notation ends with 4s(2) but I have been looking for confirmation on the internet and I am getting different answers. Some sites say that the d orbital must be accounted for, too--so the 3d(7) plus the 4s(2) would equal 9 valence electrons. I am unsure, could I get some clarification, please?[/quote] you can only have 8 valence electrons. :( & I'm thinking it is 2. Or 1. I think it has 1. [Edited on 06.20.2009 1:43 PM PDT]
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[quote][b]Posted by:[/b] Adro99 Wikipedia looks like a nice friend you could use right now[/quote] it has failed me
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too bad i suck at chemistry...
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Wikipedia looks like a nice friend you could use right now
