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• ELEMENTS are substances that
  cannot be broken down into simpler
Argon             Ar

        • Colourless,
          odourless gas
        • Lighter than air
        • Non-reactive
Argon            Ar

        • Used in advertising
Aluminium               Al

            • Pure aluminium is a
              silvery-white metal.
            • It is very light.
            • Pure aluminium is soft
              and lacks strength
Uses of Aluminium (Al)

            • Drinks cans
            • Baking foil
            • Deodorants
              (as aluminium
              zirconium salt)
Uses of Aluminium (Al)
            Because it is light it is used for:

            • Airplane
            • Ladders
            • Cans
            • Tennis racquets
            Carbon                                 C
Carbon is a black non-metal.
Unlike most non-metals, it does conduct electricity.
It has many forms.

 GRAPHITE            COAL             DIAMOND
 (The “lead”
 in pencils.)
Calcium            Ca

          • A metal
          • Reacts with water
            giving off hydrogen
Uses of Calcium (Ca)

            •Plaster of Paris
   Chlorine              Cl

Chlorine is a very poisonous
 green gas.
        Uses of Chlorine (Cl)
Chlorine is found in:
•Salt (sodium chloride NaCl)
•Bleach (NaOCl)
•Hydrochloric Acid (HCl)
•Plastics (PVC)
Chlorine (Cl) gas is added to water in
   swimming pools to kill bacteria.
Copper             Cu

         • A red metal
         • A very good
           conductor of heat
           and of electricity.
Uses of Copper (Cu)
           Copper wire is used in
             electrical cables.

           Artists also use
            copper wire to
            make small
Fluorine              F

           Fluorine is used in
           • toothpaste
           • Etched glass and
           • Refrigerants
          Gold                              Au
   Gold is a soft, yellow metal.

It is used in circuit
boards (because it’s               It is also used in
a good conductor of                jewellery.
Helium          He

         •A colourless,
         odourless gas.
         •It is inert. (It does
         not react with other
        Uses of Helium (He)

Because it is so light and   It is also used in
does not burn, helium is     making lasers.
used in airships.
Hydrogen              H
           • A colourless,
             odourless gas.
           • The lightest
             element of all.
           • Highly flammable.
Uses of Hydrogen (H)

 Hydrogen is used in rocket fuel.
Hydrogen was used in airships.

Until the Hindenberg disaster in
Iodine               I
         • A black non-metal.
         • Sublimes when
           heated (turns
           straight from solid
           to violet gas)
         • Used as an
         • Turns black when
           mixed with starch.
Iron            Fe

       Iron is a grey metal.
       It can be magnetised.
Iron (Fe)

            This is a steel

            Steel is an alloy of
              iron and carbon.
Lead              Pb

       • A very soft grey metal
       • Forms poisonous
       • Used to be used for
         water pipes
Lithium             Li

          • A very soft metal
          • Can be cut with a
          • Reacts with water
          • Is stored under oil
Magnesium            Mg

            • A metal
            • Burns with an intense
              white flame
Uses of Magnesium (Mg)

            •   Flashbulbs
            •   Flares
            •   Fire bricks
            •   Milk of Magnesia
Mercury             Hg

          • Mercury is a heavy
          • It is liquid at room
          • It gives off toxic
Uses of Mercury (Hg)

          • Thermometers
          • Mercury vapour
          • Some electrical
          • McLeod Gauges
            (used to measure
            very low pressures)
Neon            Ne

       • A colourless,
         odourless gas
       • Inert
       • Neon signs are red
Nickel             Ni

         • A metal
         • Nickel plating
           prevents rust
Nickel (Ni)

              The metal parts of a
               banjo are often
               nickel plated.
Nitrogen            N

           • A colourless,
             odourless gas
           • Nitrogen makes up
             78% of the air
Nitrogen (N)

               Used to make
Oxygen             O

         • A colourless,
           tasteless gas
Oxygen (O)

             Used in rocket fuels
Oxygen (O)

             • Water (H2O)
             • Sand (SiO2)
             • Cement (CaO)
Phosphorous              P

              • A red non-metal
              • Flammable
              (Can burst into flame
                when cut with a
Phosphorous (P)

              Found in
              • Milk
              • Soft Drinks
              • Juice
Potassium             K

            • A metal
            • Highly reactive
Potassium (K)

                Bursts into flame on
                  contact with water
Potassium (K)

                Used in
                • Matches
                • Low sodium salt
Silicon   Si
Silicon (Si)

               Used in
               • Computer chips
               • Opals and glass
               • Detergents
               • Polymers (silicones)
Silver (Ag)

              Used in
              • Jewellery
              • Photographic film
              • Cutlery
              • Coins
              • batteries
Silver (Ag)

      and in fillings.
Sodium (Na)

    • Sodium is a very
      soft metal.

    • It is stored under

      It reacts violently
      with water giving
      off hydrogen gas.
Uses of Sodium
•Salt (sodium
•Baking soda (sodium
hydrogen carbonate)
•Sodium vapour lamps
Sulfur (S)

             • A yellow non-metal
             • Burns to give off
               choking sulphur
               dioxide fumes
Sulfur (S)

             Used in
             • Sulphuric acid
             • Medicines
             • Plant food
             • Home permanent
               hair treatment
Tin (Sn)

           A metal used in
           • drinks cans
           • Pewter mugs
           • solder
Tungsten (W)

               A metal with a very
                 high melting point.
Tungsten (W)

               Used in
               • Light bulbs
               • Drill bits
               • Bullets
Zinc (Zn)

            • A metal
            • Used to galvanise
              (plate) iron to
              prevent rusting
Zinc (Zn)

            Used in batteries