Problema 1C22

Distribuição eletrônica de cada átomo: $$Eu:\;[Xe]\,6s^{2}\,4f^{7}$$ $$Kr:\;[Ar]\,4s^2\,3d^{10}\,4p^{6}$$ $$Be:\;[He]\,2s^{2}$$ $$Sb:\;[Kr]\,5s^{2}\,4d^{10}\,5p^{3}$$ $$Ag:\;[Kr]\,5s^{1}\,4d^{10}$$ Cálculo dos números quânticos: $Eu: 4f^{7}$ $$\underset{-3}{\boxed{\uparrow\phantom\downarrow}}\underset{-2}{\boxed{\uparrow\phantom\downarrow}}\underset{-1}{\boxed{\uparrow\phantom\downarrow}}\underset{0}{\boxed{\uparrow\phantom\downarrow}}\underset{1}{\boxed{{\uparrow\phantom\downarrow}}}\underset{2}{\boxed{{\uparrow{\phantom\downarrow}}}}\underset{3}{\color{red}\boxed{{\uparrow{\phantom\downarrow}}}}$$ $$n=4\;;\;l=3\;;\;m_{l}=3$$ $Kr:4p^{6}$ $$\underset{-1}{\boxed{\uparrow\downarrow}}\underset{0}{\boxed{\uparrow\downarrow}}\underset{1}{\color{red}\boxed{\uparrow\downarrow}}$$ $$n=4\;;\;l=1\;;\;m_{l}=1$$ $Be: 2s^{2}$ $$\underset{0}{\color{red}\boxed{\uparrow\downarrow}}$$ $$n=2\;;\;l=0\;;\;m_{l}=0$$ $Sb:5p^{3}$ $$\underset{-1}{\boxed{\uparrow\;\;}}\underset{0}{\boxed{\uparrow\;\;}}\underset{1}{\color{red}\boxed{\uparrow\;\; }}$$ $$n=5\;;\;l=1\;;\;m_{l}=1$$ $Ag:4d^{10}$ $$\underset{-2}{\boxed{\uparrow\downarrow}}\underset{-1}{\boxed{\uparrow\downarrow}}\underset{0}{\boxed{\uparrow\downarrow}}\underset{1}{\boxed{{\uparrow\downarrow}}}\underset{2}{\color{red}\boxed{{\uparrow{\downarrow}}}}$$ $$n=4\;;\;l=2\;;\;m_{l}=2$$