Science Project

Lead

Oct 27, 1000

BCE
Lead metal is used today in batteries , solde and television screens.

Carbon

Oct 27, 1000

Pre-history
Many organic compaunds are made from carbon.

Arsenic

Oct 27, 1250

Is used as a rat poison.

Zinc

Oct 27, 1500

Is the chief metal in the penny , altough it is coated with copper.

Antimoty

Oct 27, 1600

BCE
Is added to the plastic that makes credit cards.

Phosphorus

Oct 27, 1669

Is used in loundry soaps and other detergents.

Platinum

Oct 27, 1700

Is used in pacemarkers for the human hearts.

Nickel

Oct 27, 1751

Is used in the heating elements in toasters and electonic ovens.

Nitrogen

Oct 28, 1755

Makes up 78% of air.

Oxygen

Oct 28, 1774

Every cell in the body need oxygen.

Chlorine

Oct 28, 1774

Was used in World War 1 as a poison gas.

Aluminum

Oct 28, 1825

Makes several jewlry items such as rubbies and sapphires.

Helium

Oct 28, 1825

Helium was used to make the first gas lasers.

Fluorine

Oct 28, 1886

Is added to many materials to lower the metting point.

Argon

Oct 28, 1894

Is used as a gas in welding.

Krypton

Oct 28, 1898

Is used in camera flashes and strobe lights.

Neon

Oct 28, 1898

Is used in lights because it glows in an orange or red color.

Polonium

Oct 28, 1898

Is used in nuclear batteries for space equipment.

Radium

Oct 28, 1898

Is used to treat cancer.

Actinium

Oct 28, 1899

Uses of actinium are impossible beacause it is a radioactive and very rare.

Radon

Oct 28, 1900

Radon gas can cause long cancer.

Francium

Oct 28, 1939

Has no known uses because of its high radioactivity and the small amounts of it that are available. It is estimated that less than an ounce of francium exists in the earth's crust.

Plutonium

Oct 28, 1940

Isotopes are used in atomic bombs , nuclear reactors , and space exploration.

Americium

Oct 28, 1944

Is used in smoke detectors.

Dubnium

Oct 28, 1970

There are no uses for dubnium because it is extremely radioactive and half will decay in 34 seconds.

Ununbium

Oct 28, 1996

Ununbium does not have any known application.

Sulfur

Oct 27, 2000

Pre-history
Is used as a food preservative.

Tin

Oct 27, 2100

BCE
Use to make electrical connections.

Iron

Oct 27, 2500

BCE
Is use in magnets.

Silver

Oct 27, 3000

BCE
Silver makes photographic film and paper.

Gold

Oct 27, 3000

Is use to meke coins and bars (Gold bars).

Copper

Oct 27, 5000

BCE
Is used in many U.S. coins , including coating the penny.