👤

caracterizati elementuol Litiu


Răspuns :

Litiu - Li 
Z = 3 
A = 6,941 (7) 
                    
Li - nucleu = 3
                  = 7-3 = 4 
    - invelis electronic = [tex]3[/tex] [tex]e^{-} [/tex] -K =2 [tex] e^{-} [/tex] 
                                               -L =1 [tex] e^{-} [/tex]