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30/12/2020 4:25 pm
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What are isotopes? State its characteristics, give uses of isotopes?
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30/12/2020 4:26 pm
Atoms of same element with same atomic number but different mass number are isotopes.
Characteristics:
(1) Physical properties of the isotopes are different e.g. mass, density.
(2) Chemical properties of the isotopes are same due to same number of electrons.
Uses:
(1) Uranium isotope is used as a fuel in nuclear reactor (U-235).
(2) Cobalt isotope is used for treatment of cancer (Co-60).
(3) Iodine isotope is used in the treatment of goitre.