Across
- 1. a column of elements the periodic table
- 8. created the Plum Pudding model of the atom
- 9. the rows of elements in the periodic table
- 11. how electrons are arranged in the shells
- 14. outermost orbital and electron(s)
- 15. atom with equal numbers of protons and electrons
- 16. where protons and neutrons are found
- 19. conducted the gold foil experiment
Down
- 2. where electrons orbit around the nucleus
- 3. the number of periods in the periodic table
- 4. carries a negative charge
- 5. a charged atom
- 6. the same element yet different number of neutrons
- 7. the number of groups in the periodic table
- 10. carries a positive charge
- 12. carries a neutral charge
- 13. number of protons and neutrons in the nucleus
- 17. a pure substance with 1 type of atom only
- 18. the number given to each element