Dobry den, ucim sa elektronovu stavbu atomu, t.j. okrem ineho obsadzovanie orbitalov elektronmi. Pozeram som periodicku tabulku prvkov a nerozumiem tomu, preco po Vanadiu s atomovym cislom 23, ktore ma elektronovu konfiguraciu 3d3 4s2 (OK) je elektronova konfiguracia Chromu (atomove cislo 24) 3d5 4s1 a nie 3d4 4s2 ?! Vedel by mi to prosim niekto objasnit? Podobne Nikel (28) ma konfiguraciu 3d8 4s2 ale nasledujuca Med Cu (29) ma konfiguraciu 3d10 4s1 namiesto 3d9 4s2. Preco?! Suvisi to nejako s Multiplicitou? Ta sa ale podla uciva vztahuje na degenerovane orbitaly a "s" orbital predsa nie je degenerovany ...
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