Chemical Symbols 31-60
English
Oʻrtacha
Signs and symbols of the 31st to 60th chemical elements of the periodic table. "Chemical symbol," Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/w/index.php?title=Chemical_symbol&oldid=953572147 (accessed May 14, 2020).
Tavsif
Teglar
30
Savollar
10 soniya
Har bir savolga
1:07
Oʻrtacha vaqt
3,0
Tanlov balli
5
Ishtirokchilar
2 ta fikr
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