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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Periodická sústava prvkov
Category:
Иное
Обновлено:
16 окт 2017
História PSP
0
0
550
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Created by
Michaela Sekerešová
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Pokus
By
Michaela Sekerešová
18 окт 2017
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0
536
Veľké storočie vedy a techniky
By
Michaela Sekerešová
26 ноя 2017
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519
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Antoine Laurent de Lavoisier
Alexandre-Émile Beguyer de Chancourtois
John Newlands' Octaves
Dmitrij Ivanovič Mendelejev
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