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Use the following molecular formula to d...

Use the following molecular formula to determine the valencies of H, Cl, O, S, N, C, Br, I, Na
Molecular formulae-`H_2, HCl, H_2O,H_2S, NH_3, CH_4, HBr, HI, NaH`.

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NAVNEET PUBLICATION-INSIDE THE ATOM-QUESTION BANK
  1. Write the electronic configuration of the following element: Phosphoru...

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  2. Write the electronic configuration of the following element: Sulphur

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  3. Use the following molecular formula to determine the valencies of H, C...

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  4. Draw suitable diagrams to show the electronic configuration of the ato...

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  5. Diagrammatic sketch of electronic configuration of magnesium(Atomic nu...

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  6. Diagrammatic sketch of electronic configuration of argon(Atomic number...

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  7. What are the symbols used for the shells which accommodate the electro...

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  8. What is the symbols and ordinal number of the innermost shell ?

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  9. Write symbol of electron distribution in shell of fluorine atom ?

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  10. Which is the outermost shell of fluorine atom ?

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  11. Which is the outermost shell of sodium atom ?

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  12. Which is the outermost shell of hydrogen atom ?

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  13. What is meant by valency of an element ? What is the relationship betw...

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  14. What is meant by the atomic number (Z) of an element ?

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  15. Atomic number (Z) of some elements are given here.Write down the numbe...

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  16. The number of electrons of some elements is given here. By using it wr...

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  17. Why are the atomic numbers and atomic mass numbers always in whole num...

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  18. Sulphur contains 16 protons and 16 neutrons. What would be its atomic ...

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  19. Define: Isotopes

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  20. State the uses of isotopes

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