The Periodic Table of Elements may appear to be fully inclusive of every letter in the alphabet, but there are two exceptions. Which of these letters is missing from the Periodic Table?

Answer J

"J" is not found in the names of any elements on the Periodic Table. Neither is "Q". "Q" used to be in the temporary name Ununquadium for the 114th element, but that is now officially known as Flerovium, so "Q" and "J" are off the table.

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