Metals

Name 7 Metals that you know ....

Gold, Copper, Silver, Zinc, Aluminium, Steel, Brass, Tin, Nickle, Iron, Cobalt, Chromium, Bronze, Platinum, Lead,

now check the periodic table and

Write a 'e' beside any of these metals that are elements.

Name any property that you think different metals share?

  1. Hard / strong
  2. Smooth
  3. Bendable (but often stiff)
  4. Meltable (do not burn)
  5. Ring when struck (sonorous)
  6. Metals react with Oxygen
  7. Conduct Heat
  8. Conduct electricity
  9. Shiny
  10. Most are Solids
  11. Can Be Magnetic

A metal is a substance that generally allows its outer electrons to flow so ..... metals conduct heat and electricity. Metals also like to react with non metallic elements like oxygen.

Follow this link to find out more about metals and the way they remain as solids.

http://www.green-planet-solar-energy.com/metal-information.html

OC6 recall that metals conduct electricity and heat

OC10 understand that metals are shiny (lustrous), can be beaten into shape (malleable) and can be stretched (ductile)

OC11 understand that solder, steel, brass and bronze are alloys, and state one use of each alloy

OC13 , and understand that an alloy is a mixture

conditions necessary for rusting

prevention of rusting

OC45 understand that rusting is a chemical process that changes iron into a new substance

AlkaliMetals

OC48 describe the general properties of the alkali metals and understand that alkali metals are in Group I of the Periodic Table and have similar properties

OC49 describe the reactions of the alkali metals with air and water (word equations for reaction with water)

OC50 understand that Group II elements are the alkaline earth metals

OC51 investigate the reaction between zinc and HCl, and test for hydrogen (word equation and chemical equation)

OC52 investigate the relative reactivities of Ca, Mg, Zn, and Cu based on their reactions with water and acid (equations not required)

An aluminium cable is half the weight of a copper one with the same rating, so aluminium cables (reinforced with steel) are often preferred for hanging between overhead pylons.

Test yourself and get a score

test yourself here

http://www.sciencequiz.net/jcscience/jcchemistry/metals/metals1a.htm

Table showing relative metal costs

The table below can only really be used to give broad relative initial material costs. The figures are based on a

reference source originating about 2002

http://www.roymech.co.uk/Useful_Tables/Matter/Costs.html