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The electoni configuration of an element...

The electoni configuration of an element is : 2(K),8(L),5(M). Predict its valency.

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The valency of the element is 3. It is calculated as :8-5 =3
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DINESH PUBLICATION-STRUCTURE OF ATOM -Very Short Answer Questions
  1. If k and L shells of an atom are completely filled what will be its na...

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  2. Do isobars have also identical chemical characteristics like isotopes?

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  3. The electoni configuration of an element is : 2(K),8(L),5(M). Predict ...

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  4. What are the postulates of Bohr's model of an atom?

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

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  6. The element aluminium is written by the symbol overset(27)underset(13)...

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  7. What is the number of electrons in the valence shell of chlorine (Z-17...

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

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  9. Out of c-12 and c-14 isotopes of carbon which is of radioactive nature...

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

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

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

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

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

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

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

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

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

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

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  20. Who discovered protons?

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