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Roman Numerals
Periodic Table
100
XXXII
What is 32
100
He
What is helium
200
DCXI
What is 611
200
Carl Mosander discovered Terbium in 1842. What was his nationality?
What is Swedish
300
DLXXXIX
What is 589
300
Tm
What is thulium
400
MCDXCIX
What is 1499
400
Name at least two 2 elements in the same group as Nitrogen.
What is Phosphorus, Arsenic Antimony, and Bismuth.
500
MDCCCXXII
What is 1822
500
Which element is to the right of astatine and below xenon
What is Radon