An element can have atoms with different mass numbers but same chemical properties and some are also used in the field of medicine in the treatment of diseases? a) What are such element known as? b) Define such element and also write one examples. c) Which properties are different in them?
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Isotopes are variants of a particular chemical element which differ in neutron number. All isotopes of a given element have the same number of protons in each atom. The term isotope is formed from the Greek roots isos (ἴσος "equal") and topos (τόπος "place"), meaning "the same place"; thus, the meaning behind the name is that different isotopes of a single element occupy the same position on the periodic table.
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