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Random Element Atomic Numbers - Within 15

Guess each element's atomic number within 15 of the correct answer!
Don't lose your three lives or you're out!
You must type three digits for every answer (e.g. 003 for Lithium)
The answers change every time you play!
Quiz by
barmanitan
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Last updated: April 8, 2026
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First submittedApril 8, 2026
Times taken3
Average score18.8%
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Element
Atomic #
Promethium
061
Astatine
085
Einsteinium
099
Actinium
089
Boron
005
Barium
056
Magnesium
012
Arsenic
033
Element
Atomic #
Krypton
036
Gadolinium
064
Copper
029
Hydrogen
001
Gold
079
Ytterbium
070
Plutonium
094
Hafnium
072
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