Related Clues:

• Tiny things that get smashed
• Elemental makeup
• Little units of work
• Components of elements
• Superlattice components
• Units of energy or work
• Elvis Costello "Little ___"
• Bohr studied them
• Elemental material
• Supercollider stuff
• The three in carbon dioxide
• Joule's 10 million
• Bits of matter
• Essence of everything
• Units of electric work