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Shortest accepted input at 65+ points
FFluorine · 74 points · 1 characters
Fluorine (F) has atomic number 9 on the IUPAC periodic table.
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Beryllium88 points · Shortest accepted spelling: Be
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- Apply the complete question boundary: Atomic numbers 1–10, inclusive. Names or symbols accepted.
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Source: IUPAC · Periodic table ↗
Reference version: 2026-09-13. See our answer policy for how we handle aliases and omissions.