Element orbital representation

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Emily_Stenzler_2H
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Element orbital representation

Postby Emily_Stenzler_2H » Tue Nov 03, 2020 8:37 pm

Why are the last two orbitals shown in some cases (in lecture it's written Sc: [Ar]3d^1,4s2) rather than just the last orbital (4S^2)? Isn't it only really important to know how many unpaired electrons are in the outermost shell?

Samiha Molla 3G
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Re: Element orbital representation

Postby Samiha Molla 3G » Tue Nov 03, 2020 8:45 pm

I think any time you do a noble gas configuration, you have to write out everything after the previous noble gas, including the electrons in subshells that don't have valence electrons.

Andrew Wang 1C
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Re: Element orbital representation

Postby Andrew Wang 1C » Wed Nov 04, 2020 9:35 am

In your example, the electron in the 3d orbital can act as a valence electron and determine how the element reacts, which is why it is important to include it in the noble gas configuration.

Catherine Bubser 2C
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Re: Element orbital representation

Postby Catherine Bubser 2C » Sat Nov 07, 2020 4:05 pm

Does is matter the order in which these orbitals are written as long as the n number are in order?

Taylor K 2D
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Re: Element orbital representation

Postby Taylor K 2D » Sat Nov 07, 2020 4:16 pm

Catherine Bubser 2C wrote:Does is matter the order in which these orbitals are written as long as the n number are in order?

It does matter the order in which they are written because different orbitals have different energy levels so electron configuration should be arrange in a specific order.


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