Across
- 4. The element between to germanium and zinc
- 7. Scientist with an uncertainty principle.
- 8. The negatively charged part of an atom
- 12. Greek word meaning indivisible
- 13. The positively charged part of an atom
- 14. Created the periodic table, leaving spaces for new elements
Down
- 1. Type of particle used in the gold foil experiment
- 2. Discoverer of the nucleus
- 3. Element with an atomic mass of 12
- 4. German scientist who helped discover the nucleus
- 5. The uncharged part of an atom
- 6. Name of the metals that sit between Group 2 and Group 13
- 9. Variation of an element with extra neutrons
- 10. Name given to elements in Group 7 of the periodic table
- 11. Surname of Danish physicist, created the electron orbit model