Member for
4 ปี 2 เดือนAge: 14-16
Level: clasa a 9
Language: Romanian
(ro)
ไอดี: 223335
24/05/2020
Country code: MD
Country: Moldova
Main content: Nucleu atomic (1107319)
From worksheet author:
Nucleul atomic. Constituenți. Forțe nucleare.
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