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10 most difficult chemical elements riddles

A list of ten (out of 46) chemical elements related questions that are the most often answered incorrectly
Chemical elements quiz
Which letter is not used as a symbol of a chemical element?
T
1334
U
622
V
988
W
755
U is the chemical symbol of uranium, V - vanadium, W - tungsten.
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chemistry riddles
What is the chemical symbol of plutonium?
P
366
Pu
2025
Pt
2080
Po
224
P is the chemical symbol of phosphorus, Pt - platinum, Po - polonium.
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chemistry riddles
What is the chemical symbol of radon?
R
329
Rn
2478
Ra
2365
Rh
273
Ra is the chemical symbol of radium. Rh is the chemical symbol of rhodium.
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chemistry riddles
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Chemical elements quiz