Korpa je prazna
Who discovered that electrons are negatively charged?
Who discovered that electrons are negatively charged?
Why is the atomic nucleus considered to be positively charged and the electron cloud, negatively charged?
9 – 12. godina
Autor: Csányi Sándor
Lektor: Kovács Attila
Grafičar: Fasola Martin
Programer: Baricza Réka
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