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Cl. a VII-a

ATOMUL

QuestionAnswer
Cea mai mică particulă dintr-o substanță care nu poate fi fragmentată prin procedee chimice obișnuite ATOMUL
Care sunt părțile componente ale atomului? NUCLEUL ȘI ÎNVELIȘUL DE ELECTRONI
Care este sarcina electrică a atomului? NEUTRĂ
Ce particule se află în nucleu? PROTONI ȘI NEUTRONI
Cu ce se notează numărul protonilor din nucleu? Z
Cu ce se notează numărul nucleonilor? A
Cum se numește A? NUMĂR DE MASĂ
Cum se numește Z? NUMĂR ATOMIC
Care particulă este mai grea, protonul sau neutronul? PROTONUL ȘI NEUTRONUL AU MASE EGALE
Care este sarcina electrică a electronilor? NEGATIVĂ
Created by: ANA LUCA
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