Exercices de niveau 16.
Donner la configuration électronique des éléments suivants :
Attention aux exceptions !
[ 1 H ] = 1 s 1 = [ ↑ ] {\displaystyle \left[_{1}\mathrm {H} \right]=1s^{1}=\left[\uparrow \;\right]}
[ 6 C ] = 1 s 2 2 s 2 2 p 2 = [ ↑↓ ] [ ↑↓ ] [ ↑ ] [ ↑ ] [ ] {\displaystyle \left[_{6}\mathrm {C} \right]=1s^{2}2s^{2}2p^{2}=\left[\uparrow \downarrow \right]\;\left[\uparrow \downarrow \right]\;\left[\uparrow \;\right]\left[\uparrow \;\right]\left[\;\;\right]}
[ 8 O ] = 1 s 2 2 s 2 2 p 4 = [ ↑↓ ] [ ↑↓ ] [ ↑↓ ] [ ↑ ] [ ↑ ] {\displaystyle \left[_{8}\mathrm {O} \right]=1s^{2}2s^{2}2p^{4}=\left[\uparrow \downarrow \right]\;\left[\uparrow \downarrow \right]\;\left[\uparrow \downarrow \right]\left[\uparrow \;\right]\left[\uparrow \;\right]}
[ 34 S e ] = 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 10 4 s 2 4 p 4 {\displaystyle \left[_{34}\mathrm {Se} \right]=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{4}}
[ 52 T e ] = [ K r ] 4 d 10 5 s 2 5 p 4 {\displaystyle \left[_{52}\mathrm {Te} \right]=\left[\mathrm {Kr} \right]4d^{10}5s^{2}5p^{4}}
[ 24 C r ] = [ A r ] 3 d 5 4 s 1 {\displaystyle \left[_{24}\mathrm {Cr} \right]=\left[\mathrm {Ar} \right]3d^{5}4s^{1}} (il y a une exception à la règle de Klechkowski !)
[ 83 B i ] = [ X e ] 4 f 14 5 d 10 6 s 2 6 p 3 {\displaystyle \left[_{83}\mathrm {Bi} \right]=\left[\mathrm {Xe} \right]4f^{14}5d^{10}6s^{2}6p^{3}}
[ 40 Z r ] = [ K r ] 5 s 2 4 d 2 {\displaystyle \left[_{40}\mathrm {Zr} \right]=\left[\mathrm {Kr} \right]5s^{2}4d^{2}}
![{\displaystyle \left[_{1}\mathrm {H} \right]=1s^{1}=\left[\uparrow \;\right]}](https://wikimedia.org/api/rest_v1/media/math/render/svg/db7c29e3c42c1fe82c2dca21d9ed60f36e8b0421)
![{\displaystyle \left[_{6}\mathrm {C} \right]=1s^{2}2s^{2}2p^{2}=\left[\uparrow \downarrow \right]\;\left[\uparrow \downarrow \right]\;\left[\uparrow \;\right]\left[\uparrow \;\right]\left[\;\;\right]}](https://wikimedia.org/api/rest_v1/media/math/render/svg/029bc4bd22b5c35f278e7d7ca511c9876584615f)
![{\displaystyle \left[_{8}\mathrm {O} \right]=1s^{2}2s^{2}2p^{4}=\left[\uparrow \downarrow \right]\;\left[\uparrow \downarrow \right]\;\left[\uparrow \downarrow \right]\left[\uparrow \;\right]\left[\uparrow \;\right]}](https://wikimedia.org/api/rest_v1/media/math/render/svg/8c8420ab37238b7a9d8d1d19fbb1bf4edb65657a)
![{\displaystyle \left[_{34}\mathrm {Se} \right]=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{4}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/2d0537f1760b3e56f77ed1a5d0f8321fcccddd49)
![{\displaystyle \left[_{52}\mathrm {Te} \right]=\left[\mathrm {Kr} \right]4d^{10}5s^{2}5p^{4}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/7bbc24cab58653d273ceeddfe3e168bc77a2412e)
![{\displaystyle \left[_{24}\mathrm {Cr} \right]=\left[\mathrm {Ar} \right]3d^{5}4s^{1}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/1267a436bd7bccb46a244e850ccd6a60042d3f9a)
(il y a une exception à la règle de Klechkowski !)
![{\displaystyle \left[_{83}\mathrm {Bi} \right]=\left[\mathrm {Xe} \right]4f^{14}5d^{10}6s^{2}6p^{3}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ac66c4ec8e949343146eed4b504693bb26bae7b3)
![{\displaystyle \left[_{40}\mathrm {Zr} \right]=\left[\mathrm {Kr} \right]5s^{2}4d^{2}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/98819fb9a1a8101e1a05ec69797965291f77413e)
