Question

Modelati structurile atomilor 9
Be
4

28
Si
14

31
P
15

Answer 1

Be:

-nucleu: - 4 protoni (Z)

             -5 neutroni (A-Z)

-invelis electronic: 5 electroni: K:2 e L:3e

Si:

nucleu:- 14 protoni; 14 neutroni

invelis electronic: 14 electroni: K:2e L:8e M:4e

P:

nucleu: -15 protoni -16 neutroni

invelis electronic: 15 electroni: K:2e L:8e M:5e