Din kurv er tom
Who discovered that electrons are negatively charged?
Why is the atomic nucleus considered to be positively charged and the electron cloud, negatively charged?
Fysik
9 – 12. Klassetrin
Forfatter: Csányi Sándor
Korrekturlæser: Kovács Attila
Grafisk designer: Fasola Martin
Udvikler: Baricza Réka
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