- 6.9
- 7.6
- 7.1
- none
- Dobson
- Dalton
- Cuolomb
- none
- Protons
- Electrons
- Neutrons
- None
- France
- USA
- UK
- none
- Electron and Proton
- Two Protons and two Neutrons
- Three protons and three Neutrons
- None
- Three
- Two
- Four
- None
- Archimedes
- Galileo Galilei
- John Kepler
- None
- Amino acids
- Nucleic acids
- Carbohydrates
- None