Across
- 3. nonmetal with 8 neutrons
- 5. mass of 207 amu
- 9. mass of 27 amu
- 13. Alkali metal in Period 4
- 14. has 29 protons
- 15. halogen with 35 electrons
- 19. between manganese and cobalt
- 21. transition metal with 28 protons
- 22. Family 1, Period 2
- 23. has 16 protons
- 24. has 11 protons and 12 neutrons
Down
- 1. Family 4, Period 4
- 2. between mercury and platinum
- 4. Nobel gas with 2 neutrons
- 6. atomic number equals 17
- 7. has 15 protons and 16 neutrons
- 8. transition metal with 35 neutrons
- 10. has 6 protons
- 11. Atomic number equals 12
- 12. has only one electron
- 16. has 80 electrons
- 17. metalloid in period 3
- 18. Family 2, Period 4
- 20. nonmetal with 7 neutrons
- 23. mass of 108 amu