How do you use shorthand notation?

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How do you use shorthand notation?

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Answer 1 · 2017-12-26T07:48:12

To use a noble gas in the electron configuration.

E.g. $[N e] 3 s^{1}$ $[Ne]3s^1$

Explanation:

It means to use noble gas configuration to shorten the electron configuration names.

We could use it for big elements like Uranium ( $U$ $U$ ).

Instead of writing:

Uranium has an electron configuration of $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{6} 5 s^{2} 4 d^{10} 5 p^{6} 6 s^{2} 4 f^{14} 5 d^{10} 6 p^{6} 7 s^{2} 5 f^{4}$ $1s^2\2s^2\2p^6\3s^2\3p^6\4s^2\3d^10\4p^6\5s^2\4d^10\5p^6\6s^2\4f^14\5d^10\6p^6\7s^2\5f^4$ .

We can write it with a noble gas, which shortens it immensely

From $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{10} 4 p^{6} 5 s^{2} 4 d^{10} 5 p^{6} 6 s^{2} 4 f^{14} 5 d^{10} 6 p^{6} 7 s^{2} 5 f^{4}$ $1s^2\2s^2\2p^6\3s^2\3p^6\4s^2\3d^10\4p^6\5s^2\4d^10\5p^6\6s^2\4f^14\5d^10\6p^6\7s^2\5f^4$ ,
we shorten it to just $[R n] 5 f^{3} 6 d^{1} 7 s^{2}$ $[Rn]5f^3\6d^1\7s^2$ .

The trick is to use the closest noble gas to the element you are writing it with the e. configuration, and then continue with the pattern shown in this picture:

https://study.com/academy/lesson/ground-state-electron-configuration-definition-example-quiz.html

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How do you use shorthand notation?

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