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Define the term isotope....

Define the term isotope.

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DINESH PUBLICATION-STRUCTURE OF ATOM -Very Short Answer Questions
  1. Atom of an element has one proton one electron and no neutron .Name th...

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  2. An element has 2 electrons in the M shell. What is the atomic number o...

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  3. Write the names of three elementary paritcles which constitute an atom...

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  4. Identify the most stable atom from the following .Alson given the reas...

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  5. what are the constituents of cathode rays?

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  6. What is the mass of an electron?

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  7. Do protons and electrons have same mass?

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  8. How are the radii of the nucleus and of an atom related to each other ...

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  9. What is the maximum number of electrons which can be present in M shel...

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  10. What is common in the different isotopes of an element?

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  11. what is the e/m value of an electron?

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  12. Give the electonic distribution in an elements with atomic number 15.

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  13. Three species have the same atomic number .How are they related to eac...

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  14. Do isobars have the same number of neutrons?

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  15. Define the term isotope.

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  16. What is the valency of the element neon?

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  17. What is a nucleon?

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  18. What is the expected valency of sulphur (Z=16)?

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  19. Write the electronic distribution of the elements: (i) overset(31)un...

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  20. In a species the number of elctrons ios more than the number of proton...

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