nu exista neuroni la chimie !!!!!!!
Na.... Z=11 A=23-----> 1 atom are 11 e si (23-11) neutroni
M,Na=23g/mol
n= m/M= 23g/23g/mol= 1mol Na
1mol are N,A atomi---> 11xN,A electroni si 12xNA neutroni,
CUM N,A=6,023X10²³--> nr.e= 66,25x10²² nr.neutroni=72,27x10²³
K Z=19, A=39---> 1 atom are 19 e si (39-19)neutroni
1mol at. 19N,A e,,,.......20N,A n
2mol..........38N,A e...........40N,A n
inlocuieste pe N,A si calculeaza !!!
Ne Z=10 A=20----> 1atom are 10 e..........10 n
1mol at...........10N,A e........10N,A n
5mol............50N,A e......50N,A n
inlocuieste N,A si calculeaza !!!!
M,Ca= 40g/mol
n=m/M=4000g/40g/mol=100mol
Z= 20 A= 40----> 1atom.........20 e..........20 n
continua dupa modelele de mai sus !!!!
