Chemical Symbols 61-90

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).

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Chemistry, Chemical Elements, Periodic Table, Symbols

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10 seg

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0:41

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3,0

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3 comentários

Happy Chameleon 1 de jun de 2020

Just one mistake:
Question 10: there are two times the answer Yb.

Desert Snail autor 2 de jun de 2020

Thank you for pointing out.

Desert Snail autor 6 de ago de 2020

Error has been fixed.

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