Needing a little chemistry help

[VolsFan4Ever-11]

Been a while since i've done this.. Never quite got this stuff either.

Indicate the mazimum number of electrons that can occupy each of the first three electron shells (energy levels) of an atom.

Would it be 2, 8, 18

 

[005]

That makes me want to throw up.

 

[NewToVolCountry]

I would give you my answer but I'd feel horribly if I was wrong. Just ask TennTradition.

 

[NewToVolCountry]

The formula is 2xn(squared)

n is number of shells

 

[NewToVolCountry]

so, first shell is 2

second shell is 8

third shell is 18

 

[VolsFan4Ever-11]

so, first shell is 2

second shell is 8

third shell is 18

Ok thank you. So I was doing it the right way!

 

[NewToVolCountry]

I just hope I'm right man.

 

[VolsFan4Ever-11]

Sounds good enough to me, since we both got that.

 

[Thump]

Electron shell - Wikipedia, the free encyclopedia

Not sure how far along you are in chemistry but remember that there are sub shells. ^ the link above describes it better than I could. Been a while since I had Chem.

 

[81Bubbavol]

On the one hand I applaud you for seeking assistance at the well of the Great VolNation.

On the other hand I would hope that you had other options when you get into molecular physics !

The fact that I knew it for a few months thirty years ago won't help you, my friend.

BTW - The whole college thing is worth it. Get the degree.

 

[TennTradition]

Yeah...it looks like others have given you good advice, but I'll shoot anyway.

It goes (note this isn't order of filling, because the 4th shell's s orbital would be filled before the 3rd shell's d orbital):

1s2 (2 s-orbital electrons in the 1st shell)
2s2 (2 s-orbital electrons in the 1st shell)
2p6 (6 p-oribital electrons in the 2nd shell)
3s2 (2 s-orbital electrons in the 3rd shell)
3p6 (6 p-orbital electrons in the 3rd shell)
3d10 (10 d-type electrons in the 3rd shell)

That makes:

1st shell: 2
2nd shell: 8
3rd shell: 18

Just use this:

 

[81Bubbavol]

Dude, your cover is blown !

Get on back to Los Alamos

 

[TEX_VOLFAN]

Looks like bingo.

 

[utvol0427]

Yeah...it looks like others have given you good advice, but I'll shoot anyway.

It goes (note this isn't order of filling, because the 4th shell's s orbital would be filled before the 3rd shell's d orbital):

1s2 (2 s-orbital electrons in the 1st shell)
2s2 (2 s-orbital electrons in the 1st shell)
2p6 (6 p-oribital electrons in the 2nd shell)
3s2 (2 s-orbital electrons in the 3rd shell)
3p6 (6 p-orbital electrons in the 3rd shell)
3d10 (10 d-type electrons in the 3rd shell)

That makes:

1st shell: 2
2nd shell: 8
3rd shell: 18

Just use this:

This post




















My head
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[rjd970]

Screw chem, take physics, much more interesting and intuitive. JMO.

 

[possumslayer]

Dropout !

 

[lylsmorr]

Yeah...it looks like others have given you good advice, but I'll shoot anyway.

It goes (note this isn't order of filling, because the 4th shell's s orbital would be filled before the 3rd shell's d orbital):

1s2 (2 s-orbital electrons in the 1st shell)
2s2 (2 s-orbital electrons in the 1st shell)
2p6 (6 p-oribital electrons in the 2nd shell)
3s2 (2 s-orbital electrons in the 3rd shell)
3p6 (6 p-orbital electrons in the 3rd shell)
3d10 (10 d-type electrons in the 3rd shell)

That makes:

1st shell: 2
2nd shell: 8
3rd shell: 18

Just use this:

I am happy to say that I do NOT miss doing this stuff.

 

[TennTradition]

Screw chem, take physics, much more interesting and intuitive. JMO.

They're not so dissimilar when you get into it a good ways.
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[wildnkrazykat]

Dear lord. I'll never survive that class. It's probably One of my biggest fears in life.
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[TennTradition]

Dear lord. I'll never survive that class. It's probably One of my biggest fears in life.
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Try not to let it intimidate you. Most of the class revolves around the same set of core principles. There is some memorization, but not as much as some other subjects. The rest is driven by understanding those core principles. If you just accept that it will make sense to you in time, you'll make it just fine.

What are you going to school for? You just left work for school, right?

Feel free to PM me questions anytime when this class comes around. And, zonetards, this is me being a nerd, not me hitting on kat.
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[95 Vol Alum]

Now go derive Henry's Law!

 

[TennTradition]

It's a law of empirical proportionality ... I'm not sure how to prove it!

 

[95 Vol Alum]

Raoult's Law maybe? Been 16 years since PChem and only 5 hrs sleep.

 

[TennTradition]

Raoult's Law maybe? Been 16 years since PChem and only 5 hrs sleep.

Haha...no, I just don't know how one sets out to prove laws of fundamental, observed proportionality mathematically. However, it can probably be done. I'm thinking that you would start with the kinetic theory of gases...but then again, can you prove a law using a theory? Raoult's law can be derived from equating fugacities, but since Henry's law involves an empirical constant, I'm not sure what the fundamental proof would look like.

 

[95 Vol Alum]

Confirms why I stayed with engineering.