Related Clues:

• Merest bits
• Scintillae
• Bohr found them far from boring
• Matter makeup
• Tiny things that get smashed
• Tiny but detectable amounts
• Elemental makeup
• Is Greek?
• Components of elements
• Vowels in Greece
• Superlattice components
• Quite small amounts
• Tiniest bits
• Elvis Costello "Little ___"
• Bohr studied them