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

ELEMENTS PRESENTATION

- Oxygen

the most abundant element on earth

It makes up 21% of the earth’s atmosphere

- Nitrogen

a gaseous non metalmakes up 78% of our atmosphere

its compounds are important components of proteins,

fertilizers, and many explosives

Fertilizers are very important for agriculture

Hydrogenlightest and most abundant

element.The fuel of the universe.

Found in numerous compounds.

THE SUN

Carboncomponents of all living matter and fossil fuels.The black material on a

charred candle wick.

Phosphorouswidely distributed nonmetal.

Never found in its free, element state.

It is an essential component in all cells.

DNA

Irona magnetic and metallic

element makes out door stair railing

1.Potassiumhighly reactive metal

with low density.One of three elements in

fertilizer.

fertilizers

Lithiumhighly reactive metal.

Used in the manufacture of synthetic rubber and

drugs.Used to treat certain types

of mental illness.

Sodiumhighly reactive metal

compounds include table salt, lye and baking soda

LeadSoft, dense metal

used in bullets and car batteries

concern over its biological effects

Car Battery

1.Tina metallic element

a corrosion-resistant coating on the inside of cans and for packaging

of foods

- Antimonyit’s symbol comes from a

Latin nameit is used with lead in car

batteries

Cesiummost chemically reactive

metal used in some photoelectric

cells and atomic clockshelps make stainless steel

Solar panels

and

Stainless steel sinks

1.Magnesiuma 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.

Bariuma 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.

- Chlorinehighly reactive

used as bleach, as a disinfectant (water

purification), and as a poison gas

Heliumunreactive, 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

Manganesea metallic element

it is added to steel to increase its strength.

- Golda yellow non reactive metal highly valued since ancient

times

Argonodorless, colorless

unreactive gasused in most incandescent

light bulbs

Zincmetallic element

serves as a negative pole in a flashlight battery

melted with copper it becomes brass

Kryptonunreactive gas.

Element that could weaken Superman.

In radio active form it is a byproduct of most nuclear

weapons.

Tungstenhighest melting point of any

pure element.

Chromium helps make stainless steel

if combined with nickel makes nichrome wire which

is used in toasters

Bismutha relatively low melting

pointused in fire extinguishers

and electrical fuses

Coppera 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

Nickel one of the three magnetic

elementsused in five cent pieces

Fluorine a highly reactive, gaseous

non metaladded to tooth pastes and

to many urban water supplies

helps to prevent tooth decay

Calcium a reactive metal

makes up limestone, chalk, cement, bones and teeth in

animalsmilk is a good source of this

element

- Cadmium a metallic element

used in control rods in nuclear plants and in NiCad

rechargeable batteries

- Brominea red highly reactive fuming

liquid with a foul smell limited use as a disinfectant

it’s compound is a component of leaded

gasoline

Iodine a solid purple-black non

metalserves as a skin disinfectant

Boron used in certain glasses

(Pyrex)used in soaps and drill bits and control rods in nuclear

power plants

Aluminum the most abundant metal in

the earth’s crustused in cars, boats and

airplanes has low density

Potassiumhighly reactive metal with

low density.One of three elements in

fertilizer.

Uranium a silver white radioactive

metalused as fuel in nuclear

power plants, and in some atomic war heads

Neon an unreactive gaseous

elementused in advertising signs

Mercurynicknamed quicksilver.

only metal that is liquid at room temperature.

Used in thermometers, because it expands to heat.

Sulfurused 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

Cobalt a hard magnetic metal

used in the production of steel

used in cancer treatment

SilverThis is the best conductor for

heat and electricityIt was used in manufacturing coins but soon it became too

expensiveIt is now used in eating utensils

and decorative objects

- SiliconThe 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

Berylliumreactive metal with high

melting point.Used in manufacturing

rocket nose, because it is strong and has a low

density

Platinum an expensive silver white

metal used in jewelry used to speed up chemical

reactions