List of 20 Elements and Uses

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    Properties and Uses of Metals Elements

    Metals and

    their Symbols

    Appearance Properties Uses

    Copper

    (Cu)

    Reddish brown

    solid

    - Good conductor of

    electricity- Ductile

    - Corrosion resistant

    - Strong

    - Copper wires

    -Pipes

    Zinc

    (Zn)

    Grey solid - Good conductor of

    electricity

    - Corrosion resistant

    - Strong

    - Zinc is used inside

    batteries to produce

    electricity

    - Zinc plating for coins

    Aluminum(Al)

    Silvery shinysolid

    - Low density

    -Corrosion resistant

    - Strong and light

    - Malleable

    - Cooking foils

    -Drink cans

    Mercury

    (Hg)

    Silvery liquid - Does not react easily with

    other chemicals

    - Mercury vapour is

    fluorescent (gives out light)

    - Good conductor of heat

    - Expands evenly on heating

    - Used in thermometers

    - Used to measure bloodpressure

    Magnesium

    (Mg)

    Grey solid - Burns with a dazzling white

    light

    - Forms alkali to neutralize

    excess acid in stomach

    - Used to make milk of

    magnesia which is

    used to relieve acid

    indigestion

    Iron

    (Fe)

    Grey solid - Good conductor of heat and

    electricity

    - Ductile

    - Strong

    - Magnetic

    - Used to make cutlery.

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    Properties and Uses of Non-Metals Elements

    Non-Metals

    and their

    symbols

    Appearance Properties Uses

    Iodine(I)

    Black Crystals-

    Poisonous- Antiseptic

    - (prevents wound

    infection)

    -Used as antisepticin medicine

    Chlorine

    (Cl)

    Greenish yellow

    gas

    - Poisonous

    - Bleaches dyes

    - Used for bleaches

    for clothes

    Sulphur

    (S)

    Yellow powdery

    solid

    - Poisonous

    - Soluble in organic

    solvent

    - (e.g. alcohol) but not

    in water

    - Used to make

    rubber tyres harder

    through a process

    called

    vulcanization

    Diamond

    (Carbon, C)

    Hardest substance

    known to man

    - Can be polished to

    form a shiny,

    reflecting, transparent

    solid

    - Used as diamond

    drills to cut through

    very hard metal

    Graphite

    (Carbon, C)

    Black solid - Smooth

    - Lightweight

    - Good conductor of

    electricity

    - Used to make

    rackets

    Hydrogen

    (H)

    Colourless gas - Gas with the lowest

    density

    - Explosive

    - Used to fill weather

    balloons and

    blimps

    Nitrogen (N) Colourless gas - Non-reactive, doesnot burn or support

    combustion

    - Low boiling point

    - Used to makefertiliser for farm

    Oxygen

    (O)

    Colourless gas - Essential for life

    - Does not burn but

    support combustion

    - Used in the flames

    for welding

    Neon(Ne)

    Colourless andodorless

    - Exist as a single atom- Noble gas

    Used in making neonadvertising signs

    Helium(He)

    Colourless andodorless

    - Exist as a single atom- Noble gas

    - airships and balloonscan be filled with the

    gas to gain lift.

    - Helium is used to

    condense hydrogen

    and oxygen to make

    rocket fuel.

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