Science Class 9 NCERT: What are Isotopes and Isobars?
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Isobars are atoms of different elements having the same mass number but different atomic numbers
Isotopes are nuclei having the same number of protons, but different numbers of neutrons, hence different mass number:
Isotopes are nuclei having the same number of protons, but different numbers of neutrons, hence different mass number:
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The atoms having different molecular mass and same atomic no is called isotopes.
The atoms having different atomic number and same molecular mass is called isobars.
The atoms having different atomic number and same molecular mass is called isobars.
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