1. ELEMENTS PRESENTATION

2. - Oxygen the most abundant element on earth
It makes up 21% of the earth’s atmosphere

4. makes up 78% of our atmosphere
- Nitrogen
a gaseous non metal
makes up 78% of our atmosphere
its compounds are important components of proteins, fertilizers, and many explosives

5. Fertilizers are very important for agriculture

6. Hydrogen lightest and most abundant element. The fuel of the universe
Hydrogen lightest and most abundant element. The fuel of the universe. Found in numerous compounds.

7. THE SUN

8. Carbon components of all living matter and fossil fuels
Carbon components of all living matter and fossil fuels. The black material on a charred candle wick.

10. Phosphorous widely distributed nonmetal
Phosphorous widely distributed nonmetal. Never found in its free, element state. It is an essential component in all cells.

11. DNA

12. Iron a magnetic and metallic element makes out door stair railing

14. Potassium highly reactive metal with low density
Potassium highly reactive metal with low density. One of three elements in fertilizer.

15. fertilizers

16. Lithium highly reactive metal
Lithium highly reactive metal. Used in the manufacture of synthetic rubber and drugs. Used to treat certain types of mental illness.

18. Sodium highly reactive metal compounds include table salt, lye and baking soda

20. Lead Soft, dense metal used in bullets and car batteries concern over its biological effects

21. Car Battery

22. Tin a metallic element a corrosion-resistant coating on the inside of cans and for packaging of foods

24. - Antimony it’s symbol comes from a Latin name it is used with lead in car batteries

25. Cesium most chemically reactive metal used in some photoelectric cells and atomic clocks helps make stainless steel

26. Solar panels
and
Stainless steel sinks

27. Magnesium a silver-white metal
Magnesium a silver-white metal. Used in the transportation industry because it is strong and has a low density. Used in photo flash and fireworks because it ignites very readily.

29. Barium a reactive, metallic element
Barium a reactive, metallic element. Its compounds are used as a medical “cocktail” to outline the stomach and intestines for X-ray examination. It’s compounds give green colors to fireworks.

31. - Chlorine highly reactive used as bleach, as a disinfectant (water purification), and as a poison gas

33. Helium unreactive, gaseous element that is a product of the nuclear reaction (fusion) of hydrogen atoms. The second most abundant element in the universe. It is used in Blimps

35. Manganese a metallic element it is added to steel to increase its strength.

36. - Gold a yellow non reactive metal highly valued since ancient times

38. Argon odorless, colorless unreactive gas used in most incandescent light bulbs

40. Zinc metallic element serves as a negative pole in a flashlight battery melted with copper it becomes brass

42. Krypton unreactive gas. Element that could weaken Superman
Krypton unreactive gas. Element that could weaken Superman. In radio active form it is a byproduct of most nuclear weapons.

44. Tungsten highest melting point of any pure element.

46. Chromium helps make stainless steel if combined with nickel makes nichrome wire which is used in toasters

48. Bismuth a relatively low melting point used in fire extinguishers and electrical fuses

50. Copper a reddish, lustrous, ductile, malleable metal, occurs in nature in both free and combined states it forms the body of the statue of liberty makes pennies

52. Nickel one of the three magnetic elements used in five cent pieces

54. Fluorine a highly reactive, gaseous non metal added to tooth pastes and to many urban water supplies helps to prevent tooth decay

56. Calcium a reactive metal makes up limestone, chalk, cement, bones and teeth in animals milk is a good source of this element

57. - Cadmium a metallic element used in control rods in nuclear plants and in NiCad rechargeable batteries

58. - Bromine a red highly reactive fuming liquid with a foul smell limited use as a disinfectant it’s compound is a component of leaded gasoline

59. Iodine a solid purple-black non metal serves as a skin disinfectant

60. Boron used in certain glasses (Pyrex) used in soaps and drill bits and control rods in nuclear power plants

61. Aluminum the most abundant metal in the earth’s crust used in cars, boats and airplanes has low density

62. Potassium highly reactive metal with low density
Potassium highly reactive metal with low density. One of three elements in fertilizer.

63. Uranium a silver white radioactive metal used as fuel in nuclear power plants, and in some atomic war heads

64. Neon an unreactive gaseous element used in advertising signs

65. Mercury nicknamed quicksilver
Mercury nicknamed quicksilver. only metal that is liquid at room temperature. Used in thermometers, because it expands to heat.

67. Sulfur used in the tips of matches and in gun powder Its presence to coal leads to acid rain if it is not removed before the coal is burned

68. Cobalt a hard magnetic metal used in the production of steel used in cancer treatment

69. Silver This is the best conductor for heat and electricity It was used in manufacturing coins but soon it became too expensive It is now used in eating utensils and decorative objects

70. - Silicon The second most abundant element on the earth’s crust it is the principle component of sand and quartz found in solar cells, computer chips, caulking materials, and abrasives

72. Beryllium reactive metal with high melting point
Beryllium reactive metal with high melting point. Used in manufacturing rocket nose, because it is strong and has a low density

74. Platinum an expensive silver white metal used in jewelry used to speed up chemical reactions