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The element aluminium is written by the ...

The element aluminium is written by the symbol `overset(27)underset(13)AI`.write the number of protons, electrons and neutrons present in it.

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No of protons =13 , No of electrons =13 , No of neutrons =27-13 =14
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DINESH PUBLICATION-STRUCTURE OF ATOM -Very Short Answer Questions
  1. What are the postulates of Bohr's model of an atom?

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  2. What is the basic difference between the isotopes of an elements?

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  5. The radioactive isotope used in the treatment of cancer is :

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  7. If an atom has one proton and one electron state the charge on the ato...

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  8. The electronic configuration of an element Z is 2,8,6.How many electon...

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  9. Will overset(12)underset(6)C and overset(14)underset(6)C have differen...

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  10. The atom of an elelment 'A' has threee electons in the outermost shell...

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  11. The atom of an element has electronic configuration 2,8,6.Does it gai...

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  12. Do the elelment overset(3)underset(1)X and overset(3)underset(2)Y repr...

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  13. An element X has a mass number 4 and atomic number 2. Write the valenc...

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  14. Name the particles which actually determine the mass of an atom.

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  15. J. chadwick discovered a sub atomic particle which has no charge but h...

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  16. The K and L shells of an atom are completely filled. Find the number o...

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  17. Who discovered protons?

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  18. What are valence shell and valence electrons?

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  19. The total number of nucleons in the atoms of clacium and argon is 40 ...

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  20. Atom of an element has one proton one electron and no neutron .Name th...

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