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Member for
3 years 6 monthsAge: 11+
Level: easy
Language: Czech
(cs)
ID: 744996
21/02/2021
Country code: CZ
Country: Czechia
Main content: Atom - počty částic (1286628)
From worksheet author:
Počty částic v atomech u prvků
Other contents:
Atom, proton, neutron, elektron
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