5 for B or 6 for C, e.g. WSJ Crossword Clue

By Last Update: AUG 1, 2026 Follow on Google

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The most common and recent 4-letter answer for "5 for B or 6 for C, e.g." is ATNO.
The clue refers to atomic numbers on the periodic table, where 'B' (Boron) has an atomic number of 5 and 'C' (Carbon) has an atomic number of 6. 'ATNO' is an abbreviation for 'atomic number,' which is the number of protons in an atom's nucleus.
ATNO is short for atomic number, indicating the number of protons in an atom's nucleus.
18, for 47-Across
WSJ Crossword - December 11, 2025 - WSJ Crossword - January 15, 2026 - WSJ Crossword - August 01, 2026

The clue “5 for B or 6 for C, e.g.” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated August 1 2026, the definitive 4-letter answer is: ATNO.

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