Iron, Fe, is a silvery malleable and ductile transition metal
element, found in
Group VIII of
the periodic table.
Iron, Fe, normally consists of four isotopes. Six other
isotopes are known.
- Atomic Number : 26
- Relative Atomic Mass : 56
- Melting Point : 1535 degC
- Boiling Point : 2750 degC
- Relative Density : 7.8
Iron was known since ancient times.
Iron is widely distributed in the universe, and exists in all the
planets, in meteorites and in the sun. Its principal ore is
Iron is extracted by the reduction of its oxide ores with carbon.
Iron in its pure state
- is highly reactive, and
- in its pure state oxidises rapidly in air.
Iron is oxidises slowly in air.
Iron is attacked by acids to form salts with the liberation of hydrogen.
Fe + HCl ==> Fe2Cl3 + H2
Iron exists in two oxidation states in its compounds.
- Iron is an important component of steel alloys.
- Iron in its alloys is important in structures.
- Iron in essential for life and is an important component of
the Hemoglobin in blood.
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