Periodic Table
Across
- 6. I am a noble gas with 2 electrons.
- 8. an inert gas and group 18
- 9. I am the only element in the halide family that is a liquid.
- 11. I am not really an alkali metal, but since I have only 1 electron I behave like them.
- 15. I am a metal that is liquid at room temperature.
- 16. I am the head of the carbon family known as the “basis of life”.
- 17. I am a member of the carbon family often mistaken for the end of your pencil.
- 18. I am the 2nd most abundant element in the Earth’s crust and have 14 neutrons.
- 20. My atomic mass is 35.453.
- 22. I am a member of the boron family and am the most abundant metal in the Earth’s crust.
Down
- 1. I am a metal with 28 electrons.
- 2. The outer energy level or shell of any atom.
- 3. I am the first element in the fourth period used in making fertilizer.
- 4. I am a member of the nitrogen family with 16 neutrons.
- 5. I make up 78% of the air and am found in the 15th group.
- 7. the rows that identify the number of energy levels
- 10. I am a gas with 8 protons and 8 neutrons.
- 12. My atomic number is 79.
- 13. I have 2 electrons in the first shell, 8 in the second shell.
- 14. I have 26 protons.
- 15. I am a member of the alkaline earth metals used to make fireworks and medicines.
- 19. I am a silvery white metal used to make salt.
- 20. I have 20 neutrons and am found in your teeth and bones.
- 21. My atomic number is 47 and I am used to make photographic film.