Across
- 4. The most common inert (noble) gas in the atmosphere(#18)
- 5. We need this element to survive, such as liver and kidney function, but our bodies cannot store it(#25)
- 7. A metalloid used in semiconductors and glass (#14)
- 10. This metal, along with uranium, is used in nuclear reactors. Its job is to absorb neutrons to slow or control the reaction(#48)
- 11. A trace element found naturally in many foods and taken as a dietary supplement(#5)
- 13. This is the lightest and smallest of the alkaline metals(#4)
- 16. A component of bones, teeth, DNA and RNA, and found as a white or red powder(#15)
- 17. The heaviest naturally occurring noble gas (#86)
- 18. This element is found in a large variety of colors but rubies get their red color from small traces of this(#24)
- 19. A heavy metal used in batteries, radiation shields and old paints(#82)
- 21. This metal is commonly used in light bulb filaments due to its high melting point and was originally name Wolfram(#74)
- 25. The element that we need to breathe in order to live(#8)
- 26. An element that is required for energy production, protein synthesis, muscle and nerve function, and blood glucose and pressure regulation(#12)
- 27. This element is a noble gas with the atomic number 10 (#10)
- 29. The lightest and most abundant element in the universe (#1)
- 31. A radioactive element used in nuclear power plants(#92)
- 33. A metal used in electrical wires and plumbing pipes(#29)
- 34. Second place medal in the Olympics (#47)
- 35. This element is the lightest and most reactive halogen(#9)
- 38. A metal that is essential for the human diet and found in red blood cells (#26)
- 39. Used for flashes in high-speed photography and as a conductive gas in fluorescent lights(#36)
- 40. An alkali metal that reacts vigorously with water and is part of table salt (#11)
Down
- 1. Known for its corrosion-resistant properties, this metal has been used for jewelry but its main use is in catalytic converters in vehicles(#78)
- 2. A common poison used in rodent traps and baits(#33)
- 3. An important metal found in bones(#20)
- 6. Known as the "King of Metals" with its shiny yellow color (#79)
- 8. This was a poison gas used in World War 1(#17)
- 9. This element is commonly used in batteries (#3)
- 12. This 5 cent coin is actually made of about 75 percent copper(#28)
- 13. This element is a halogen and a liquid at room temperature(#35)
- 14. The name of this element comes from the German word kobold, meaning goblin ore(#27)
- 15. An alkali metal that emits purple light when it burns (#19)
- 18. Diamonds are made of this nonmetal after many years of intense heat and pressure(#6)
- 20. Used in arc lamps for movie sets. When pressurized in an arc lamp, it can produce UV light. Also used for radiation detection and in x-ray counters(#54)
- 22. The properties of this element allow it to decolorize glass but also make red glass. It is also used in solar and photo cells(#34)
- 23. A noble gas that is commonly used in balloons because it is lighter than air (#2)
- 24. A metal used to make soup/food cans(#50)
- 28. This is the primary element found in the air that we breath(#7)
- 30. This metal can be found as the main component in pennies (not copper) and is also found in toothpaste and baby powder(#30)
- 32. A metal used to make foil used in baking/cooking(#13)
- 36. Salts with this element, are used in photographic film and as an antiseptic for wounds(#53)
- 37. This metal is a liquid at room temperature(#80)
- 40. A yellow powder that is a component of gunpowder and gives flatulence its odor(#16)