Elements with Equal Protons and Neutrons

Can you name every element with an equal number of protons and neutrons?
Based on atomic mass, rounded to the nearest whole number
Stable isotopes only
Quiz by
Azerk
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Last updated: December 21, 2022
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First submittedDecember 21, 2022
Times taken9
Average score88.9%
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Element
Calcium
Carbon
Helium
Magnesium
Neon
Nitrogen
Oxygen
Silicon
Sulfur
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