Periodic Table
Across
- 3. element used in cleaning cuts, wounds
- 9. number of protons in an atom
- 11. has a positive charge
- 12. where electrons are found
- 14. element found in soda cans
- 17. element found in toothpaste
- 18. element essential for all living things
- 20. element found in bananas
- 22. has a neutral charge
- 23. where protons and neutrons are found
- 25. element that has four neutrons
Down
- 1. has atomic number of seven
- 2. is the lightest element
- 4. element used in electrical wiring
- 5. has six neutrons
- 6. element used in store opening/closing signs
- 7. key element found in salt
- 8. atomic _______is the sum of protons and neutrons
- 10. used to help have strong bones and teeth
- 13. atomic number of helium
- 15. element symbol is Fe
- 16. has element symbol of Mg
- 19. yellow metal used in jewerly
- 21. a proton has a mass of _____amu
- 22. has element symbol of Ni
- 24. has a negative charge