Across
- 1. Modern match sticks use this element as the primary ignitor
- 2. Bananas have high levels of this element, making them both healthy and radioactive
- 7. This element is the most explosive and best tasting of all the alkali metals (the elements from the first column of the periodic table)
- 8. This element ignites easily in air and burns with a bright light; it's used in flares, fireworks and sparklers
- 11. The least corrosive element — it means it is least bothered about reaction with water, acid, air or other chemicals.
- 14. This element is named after Marie Curie. Marie Curie was a pioneer in the research of radioactivity.
- 15. This most important element of life is the same element that forms the diamond, which is the hardest known substance
- 18. The sun works by turning this element into helium
- 22. This element gets its name from the German word "kupfernickel" which means "devil's copper." German miners named ore containing this element "kupfernickel" because, although they thought the ore contained copper, they were unable to extract any copper from it.
- 23. As of 2022, this is the most recently discovered element (does not occur naturally)
- 25. This element, discovered in 1791, was originally named Gregorite after its founder Reverend William Gregor. It is often used for medical implants because it’s rarely rejected by the human body. It’s considered the most biocompatible metal in the world.
- 26. This element, when combined with iron and boron, is used to make powerful permanent magnets that are used in computers, cell phones, medical equipment, and wind turbines
- 27. This metal is found inside batteries that power a variety of electronic devices from pacemakers to laptops to cars
- 29. This is the primary element that makes up the current (after 1982) penny
- 31. This element is the main ingredient in Pepto-Bismol
- 32. The first element to be artificially produced. It was first synthesized in 1937.
- 33. This element acts as a powerful antioxidant and can be found naturally in crab, fish, poultry, and wheat.
- 38. The most radioactive element on Earth
- 41. Watches and clocks used to be painted by hand using this paint containing this element. The women who used to paint them would lick the paint brushes as they painted, which was a bad idea because many became sick or died from licking this element.
- 43. This element is sometimes used as an alternative to chorine to treat swimming pools and hot tubs
- 44. Double-pane windows have a layer of this gas trapped between two panes of glass that acts as insulation to reduce heat loss through the window
- 46. Sand and glass have a high percentage of this element
- 47. This metal is more ductile than gold, silver or copper, thus being the most ductile of pure metals, but it is less malleable than gold.
- 50. The Coinage Act of 1965 eliminated this element from the production of quarters and dimes
- 52. This odorless and invisible radioactive gas is naturally released from rocks, soil, and water. This gas can get trapped inside homes and buildings and build up in the air. Over time, breathing in high levels of this gas can cause lung cancer.
- 53. This is the most abundant metal on Earth
Down
- 1. The world's most dangerous element
- 3. This element comes from a German word meaning "goblin ore"
- 4. Prior to 1836, this element was used to poison humans through food and drinks
- 5. This element was named after the Greek God of the Sun, Helios
- 6. This element has 93 protons and is named after the 8th planet from the Sun
- 9. This extremely toxic metal is liquid at room temperature
- 10. This element is used to strengthen teeth enamel and make Teflon, the compound found in non-stick pans
- 12. This element has almost exactly the same density as gold, so if it gets plated
- 13. This element was discovered by Lars F. Nilson in 1879, in Uppsala, Sweden.
- 14. The presence of this element causes the ruby to be red. The strength of ruby's red depends on how much of this element is present—the more there is, the stronger the red color.
- 16. Combustion with this element allows people to drive a car, run a furnace, or send rockets into space; also known as the "oxidizer" of life
- 17. This metal is most often associated with healthy bones and teeth, although it also plays an important role in blood clotting, helping muscles to contract, and regulating normal heart rhythms and nerve functions.
- 19. This element has a half-life of 8.3 hours, which means that whenever it occurs naturally it doesn't stick around very long.
- 20. Under a program called The Manhattan Project, engineers used this element to create the first atomic bomb
- 21. The densest known element
- 24. This noble gas glows bright orange-red when electricity runs through it
- 28. The Latin word for this element is stannum
- 30. This is the first metal to be worked (made into things) by man more than 10,000 years ago
- 31. This element is a critical ingredient that gives silly putty its ability to be soft and moldable in your hand, yet hard and bouncy when you throw it against a wall
- 34. This is the only element to have an Age (in history) named after it. This element is used as a primary toolmaking material.
- 35. This element is found in many common household chemicals, like bleach
- 36. This is the most malleable of all metals. A single ounce of this substance can be beaten into a 300-square-foot sheet
- 37. When combined with hydrogen, this element produces a characteristic rotten egg smell
- 39. The last naturally occurring element to be discovered
- 40. Paint that contains this element was banned from residential use in 1978. When this element is absorbed in the body it can cause damage to the brain and other vital organs, like the kidneys, nerves, and blood.
- 42. Element named after the person who is credited for developing the Periodic Table of Elements
- 45. Most of us probably associate this element with a brown antiseptic solution used in the home and the operating room to clean wounds. This element has even been used to purify water, either in tablet or liquid form.
- 48. This element makes up 78% of the atmosphere
- 49. This poisonous metal has 4 protons
- 51. The first element named in honor of a person