floor+ sarcina nucleului +9
2 straturi energetice 1 strat - 2 electroni ,2 strat - 7 electroni
neon +sarcina nucleului + 10
2 straturi energetice 1 strat - 2 electroni , 2 strat - electroni
natriu + sarcina nucleului + 11
3 straturi energetice 1 strat - 2 electroni , 2 strat -8 electroni ,3 strat -1 electron
magneziu +sarcina nucleului + 12
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 2 electr
aluminiu + 13
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 3 electr
siliciu + 14
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 4 electr
fosfor + 15
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 5 electr
sulf +16
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 6 electr
clor +17
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 7 electr
argon +18
3 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 8 electr
potasiu +19
4 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 8 electr , 4 strat 1 electr
calciu +20
4 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 8 electr , 4 strat 2 electr
scandiu +21
4 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 8 electr , 4 strat 3 electr
titan +22
4 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 8 electr , 4 strat 4 electr
vanadiu +23
4 straturi energetice 1 strat - 2 electr , 2 strat - 8 electr ,3 strat 8 electr , 4 strat 5 electr
