Which two letters of the English alphabet are not used in any current chemical element symbol?
Show answer
J and Q
While the periodic table contains 118 elements, the letters J and Q are completely absent from their official symbols. Interestingly, iodine is known as 'Jod' in German, but its international symbol remains a simple 'I' to maintain consistency across languages.
Also asked as:
- Which two letters of the alphabet are never used in the names or symbols of elements on the Periodic Table?