Element x has 18 proton and 22 neutrons while element y has 20 proton and 20 neutron. write the relation between these two elements. Also define
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18 protons + 22 neutrons= 40 nucleons or mass number
20 proton + 20 neutrons= 40 nucleons or mass number
These are isotopes:
Isotopes: Isotopes are variants of particular element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have same number pof proton but different numbers of neutrons in each atom. For example: Carbon-14, Carbon-12, Deuterium, Carbon-13, Tritium, Uranium-238, Uranium-235 and Hydrogen-1.
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