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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