Across
- 7. I am in group 15 row 5
- 10. My atomic number is 79.
- 11. I member of group 13 and the most abundant metal in the earth's crust.
- 12. I am the only halogen that is a liquid.
- 14. I am an alkaline earth metal and used for fireworks.
- 15. I am a gas with a mass of 19.00
- 19. I make up 78% of the air and I am found in the 15th group.
- 20. I am a transition metal with 25 electrons.
- 23. I am the second most abundant element in the earth's crust,used in computer ships and have 14 neutrons.
Down
- 1. I have 20 neutrons and I am found in your teeth and bones.
- 2. I am a halogen in row 3
- 3. I am a gas with 8 protons and 8 neutrons.
- 4. I am a silvery white metal,alkali metal and used to make salt.
- 5. I am the first element in the fourth period,help with muscles and found in bananas.
- 6. I am not really an alkali metal, but since I have one proton I act more like a nonmetal.
- 8. I have 2 electrons in the first energy level, 8 electrons in the second and 6 in the third.
- 9. I have 26 protons.
- 13. I am a halogen with 53 protons.
- 16. I am a metal that is liquid at room temperature.
- 17. I am a transition metal with 30 electrons and useful for your immune system.
- 18. I am the head of the carbon family known as the "basis of life"
- 21. My atomic number is 47 and I am use in making photographic film.
- 22. I am a member of group 15 with 16 neutrons.
- 24. I am a member of group 14,mistaken for the end of your pencil and unfortunately sometimes found in water.
