Chemical Symbols 61-90
English
Просунутий
Signs and symbols of the 61st to 90th 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).
Опис
30
Запитань
10 сек
На запитання
0:41
Середній час
3,0
Результат у конкурсі
4
Учасники
Question 10: there are two times the answer Yb.