Periodic Table of Elements

3. Compounds containing this halogen are often used to disinfect swimming pools.
6. This metal has 26 electrons.
8. This radioactive element has the highest atomic mass of the naturally occuring elements.
10. The third period alkaline earth metal.
11. Compounds containing this element are essential to life; the element on its own is what makes up diamonds.
13. A violet colored nonmetal that sublimes when heated.
15. This element typically has 20 neutrons and is found in your bones.
16. A yellow nonmetal that forms compounds with a horrible "rotten egg" smell.
17. This nonmetal makes up about 20% of the air you breathe.
20. This second period nonmetal is used in making fertilizer.

1. This element was named after the Titans of Greek mythology because of its strength.
2. The smallest noble gas.
4. A metal commonly used in electrical wiring, and is also what gives pennies their characteristic color.
5. This metal can be used in photographic film.
7. This element has an atomic mass of 74.9 amu.
9. This element, one of the lightest, is used in certain types of batteries.
12. A nonmetal that is liquid at room temperature.
14. This element is named after Marie Curie, the scientist who discovered radium and polonium.
18. This nobel gas glows purple when an electric current passes through it.
19. This unreactive metal is very valuable and is often used in jewelry.