Across
- 3. 2nd most abundant in Earth's crust, 14 neutrons
- 4. transition metal with 25 electrons
- 8. carbon family-often mistaken for end of your pencil
- 10. atomic number 47-used to make photographic film
- 12. halogen with atomic number of 53
- 13. in the Carbon family in the 5th period
- 14. silvery white metal used to make salt
- 18. metal and liquid at room temperature-poisonous
- 19. make up 78% of air, in 15th group
- 21. noble gas with 2 electrons
- 23. 26 protons
- 24. not an alkali metal, but have 1 electron
- 25. in Nitrogen family with 16 neutrons
- 26. halogen that is a liquid
Down
- 1. head of carbon family, basis of life
- 2. 16 neutrons, oxygen family
- 5. atomic number 79
- 6. 20 neutrons found in your teeth and bones
- 7. gas with a mass number of 19
- 9. most abundant metal in Earth crust- Boron family
- 11. transition metal,30 electrons,used in making paint
- 15. gas with 8 protons and 8 neutrons
- 16. 1st element in 4th period used in fertilizer
- 17. alkaline Earth metal, used in fireworks
- 20. 28 electrons. I am a metal.
- 22. atomic mass is 35.45