Across
- 5. My atomic number is 79
- 9. I am a member of the carbon family often mistaken for the end of your pencil
- 10. I have 20 neutrons and am found in your teeth and bones
- 12. I am the first element in the fourth period used in making fertilizer
- 14. I have 26 protons
- 15. You can find me in the carbon family in the fifth period
- 16. I make up 78% of the air and am found in the 15th group
- 18. I am a silvery white metal used to make salt
- 20. I am a member of the boron family and am the most abundant metal in the Earth's crust
- 22. I am a member of the halogen family with an atomic number of 53
- 23. I am a metal with 28 electrons
- 24. I am not really an alkali metal but since I have only 1 electron I behave like them
- 25. My atomic mass is 35.453
- 26. I have 2 electrons in the first shell, 8 in the second shell, and 6 in the third shell
Down
- 1. I am a member of the nitrogen family with 16 neutrons
- 2. I am a noble gas with 2 electrons
- 3. I am the only element in the halogen family that is a liquid
- 4. My atomic number is 47 and I am used to make photographic film
- 6. I am a gas with a mass number of 19
- 7. I am the head of the carbon family known as the "basis of life"
- 8. I am a gas with 8 protons and 8 neutrons
- 11. I am a transition metal with 25 electrons
- 13. I am a transition metal with 30 electrons useful in making paint
- 17. I am the 2nd most abundant element in the Earth's crust and have 14 neutrons
- 19. I am a metal that is liquid at room temperature
- 21. I am a member of the alkaline earth metals used to make fireworks and medicines