Question

Numarul de particule subatomice din 1,3 g zinc

Answer 1

( Neglijam gluonii , bosonii , quarcii etc...)

Particule subatomice :

- electroni

- protoni

-neutroni

A Zn = 65g/mol

n Zn =1,3/65 = 0,2 moli

In 0,2 moli de Zn se afla

6,022 *10^23 *0,2 =1 ,2044 * 10^23 atomi Zn

1 atom Zn :
- 30 electroni
-30 protoni
-35 neutroni

=> 30*1,2044*10^23=36,132 *10 ^23 electroni / protoni

35*1,2044*10^23=42,154*10^23 neutroni