METALS!

By: Khalid Al Khulaifi8C

My presentation is going to be about Metals and their discovery, use, extraction, properties and we are trying to find if the date metals were discovered affects their reactivity.

This project is linked to Human Ingenuity because it talks about who and when discovered these metals.

Periodic Table

Magnesium

Did you know that Magnesium is the sixth most abundant element in the earth’s crust?

Joseph Black discovered magnesium in England 1755. “The element was isolated by A.A.B. Bussy and Sir Humphrey Davy in 1808”(1). The element is silvery-white, soft, and light metal. Its malleable, ductile, and a good conductor of electricity and heat. The most used method of extracting magnesium is based on electrolysis of magnesium chloride collected from the seawater. (1) http://www.facts-about.org.uk/science-element-magnesium.htm

Uses of Magnesium:

Photography (old type flash powder and flash bulbs)

Flares

Airplanes

Missiles

Incendiary bombs

ZINC

DID YOU KNOW THAT ZINC IS THE FOURTH MOST COMMON METAL IN USE?

“Zinc alloys have been used since ancient times by the Asians, Greeks, Chinese and Romans. “ The chemist Andreas Marggraf discovered zinc in 1746; it was isolated two years earlier by Anton von Swab. The element is bluish-white, lustrous metal. It is malleable, brittle and it is a reasonable conductor of electricity and heat. Zinc is extracted using two methods: the first method is Roasting and the second one is Reduction.

Uses of Zinc:

Alloys

Galvanizing metals

Electric fuses

Medical use

Roofing

COPPER

Copper was discovered in Ancient Times and used by the ancient Egyptians, Greeks, Romans and Chinese. Copper is described as a reddish-gold metal that is ductile, and malleable. It is a great conductor of heat and electricity. Extracting copper from its ores depends on the nature of the ore. “Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate”. (1)

(1) http://www.chemguide.co.uk/inorganic/extraction/copper.html

DID YOU KNOW THAT TODAY’S U.S COINS, DIMES, QUARTERS AND HALF DOLLARS HAVE A SOLID COPPER CORE AND AN OUTER

LAYER OF A COPPER-NICKEL ALLOY?

Uses of Copper:

Wires

Sheets

Statues

Cookware

Coins

Electromagnets

POTASSIUM

Sir Humphrey Davy discovered potassium in 1807 in London. Potassium is a white, soft metal, which is silvery when cut. This highly explosively metallic element occurs in the nature only in its compound. “Potassium metal is prepared by heating potassium carbonate with charcoal.” (1)

Did you know that Potassium was the first metal to be isolated using electrolysis?

(1)http://www.ucc.ie/academic/chem/dolchem/html/elem/elem019.html

Uses of Potassium:

Glass

Soap

Medical

Gunpowder

Fertilizers

ALUMINIUM

Aluminium was discovered by Hans Christian Oersted in 1825 and isolated in Copenhagen, Denmark. “Aluminium is a silvery-white, ductile metallic element.”(1) This metal is extracted from its ore by electrolysis.

Did you know that Aluminium is one of the planet’s most common but most difficult metal to get?

(1)http://www.facts-about.org.uk/science-element-aluminum.htm

Uses of Aluminium:

Airplanes

Soda cans

Aluminum Recycling

Statues

IRON

It is said that Iron is believed to have been first discovered by the Egyptians in 4000 BC. “In the old days iron was used mainly for making trinkets and beads. In order to do that, ancient people had to forge iron at temperatures above 1100 C.”(1) Iron is silvery-white, lustrous, malleable, and ductile. Iron is Extracted from its ore in a blast furnace which is heated to 1000 C.

Did you know that Iron was believed to have been first discovered by the Egyptians in 4000 BC ?

(1)http://www.whoguides.com/who-discovered-iron

Uses of Iron:

Making Vehicles

Making Steel

Making Building Supports

Making Airplanes

Making Office Supplies

Making Computers

Making Furniture

Making Ships

If the metal is Discovered a long time ago then its less reactive so it is placed at the bottom of the reactivity series, on which is more reactive.

http://www.youtube.com/watch?v=eCk0lYB_8c0

BRAINIAC ALKALI METALS

THANKS FOR WATCHING!

Bibliography: http://www.facts-about.org.uk/science-element-magnesium.htm http://chemistry.about.com/od/elementfacts/a/magnesium.htm http://www.facts-about.org.uk/science-element-zinc.htm http://www.webelements.com/zinc/ http://www.webelements.com/copper/ http://www.chemguide.co.uk/inorganic/extraction/copper.html http://www.facts-about.org.uk/science-element-potassium.htm http://www.rsc.org/chemsoc/visualelements/pages/data/potassium_data.ht

ml http://www.facts-about.org.uk/science-element-aluminum.htm http://en.wikiversity.org/wiki/Extraction_of_aluminium http://www.facts-about.org.uk/science-element-iron.htm http://www.whoguides.com/who-discovered-iron