atomic weight , atomic number , properties and applications of iron and copper ?
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Iron
Iron Atomic Number : 26
Iron Atomic Mass : 55.85 g.mol -1
Physical Properties of Iron:
- It rusts in damp air, but not in the dry air.
- It dissolves readily in dilute acids.
- At room temperature, this metal is in the form of ferrite or α-form.
- At 910°C, it changes to γ-iron, which is much softer in nature.
- It melts at 1536°C and boils at 2861°C.
- Being a metal is magnetic in nature.
Uses of iron:
- It is used to manufacture steel and also used in civil engineering like reinforced concrete, girders etc.
- Iron is used to make alloy steels like carbon steels with additives such as nickel, chromium, vanadium, tungsten, and manganese.
- These are used to make bridges, electricity pylons, bicycle chains, cutting tools and rifle barrels.
- Cast iron contains 3–5% carbon. It is used for pipes, valves, and pumps.
- Iron catalysts are used in the Haber process for producing ammonia.
Copper:
Atomic Number of Copper: 29
Atomic Mass of Copper: 63.546 g.cm-3 at 20°C
Physical Properties of Copper:
- Copper is soft, but it is tough.
- It is easily mixed with other metals to form alloys such as bronze and bronze.
- Bronze is a tin and copper alloy, and brass is a zinc and copper alloy.
Uses Of Copper:
- Copper sulfate is used widely as an agricultural poison and as an algicide in water purification.
- It is a crucial element in the creation of bronze.
- It is used for a whole range of goods, from cans, cooking foil and saucepans through to electricity cables, planes, and space vehicles.
- Electrical conductivity is especially important because wire accounts for more than 50% of copper consumption worldwide.
- Chemical vapour deposition, which is used in semiconductor manufacture, involves the deposition of thin copper films from a gas- phase precursor.
- Copper is used largely as an alloy of gold and silver, and it is often plated with one or the other.
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