Which of the following structures is never found in compounds? A - Scottish Highers Chemistry - Question 9 - 2023

In chemistry, monatomic structures refer to single atoms that do not bond with other atoms to form compounds. Elements like the noble gases (e.g., helium, neon) exist as monatomic species, but they do not form compounds under standard conditions. Therefore, the correct answer is C. Monatomic, as these structures are never found in compounds.