Answer:
(a) Difference between isobars and isotopes
(b) (i) Isotope of cobalt (Co-60) is used in the treatment of cancer.
(ii) Isotope of uranium (U-235) is used as a fuel in
nuclear reactor.
Isotopes
Isobars
These are the atoms of the same element having same
atomic number but different mass numbers.
These are the atoms of the different elements having
same mass number but different atomic numbers.
They have identical chemical properties and different
physical properties.
They have different chemical properties and different
physical properties because these are the atoms of different elements.
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