Related Clues:
- Smallest particle in an element able to take part in a chemical reaction
- Very small object or amount
- Tiny piece of something
- Maker of bonds
- Basic unit of a chemical element
- Its diameter is measured in picometers
- Chemical particle
- Tiny bit of matter
- Smashing target
- Building block of molecules
- It's made of electrons and protons
- Bohr theory subject
- Bit of science
- Electron home
- Literally, ''indivisible''