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What is the contribution of the followin...

What is the contribution of the following in Atomic structure
Democritus ?

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ICSE-ATOMIC STRUCTURE AND CHEMICAL BONDING-EXERCISE 4(D)
  1. What is the contribution of the following in Atomic structure Democ...

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  2. How do atoms attain noble gas configuration ?

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  3. Define electrovalent bond.

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  4. Elements are classified as metals, non-metals, metalloids and inert ga...

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  5. An atom X has three electrons more than the noble gas configuration. W...

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  6. Write the formula of M<sup>+3 </sup>(i) sulphate (ii) nitrate (iii) ph...

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  7. Mention the basic tendency of an atom which makes it to combine with o...

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  8. What type of compounds are usually formed between metals and non-metal...

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  9. In the formation of the compound XY(2), an atom X gives one electron ...

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  10. Draw the orbit structure of this compound (XY2).

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  11. An atom X has 2, 8,7 electrons in its shells. It combines with Y havi...

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  12. An atom X has 2,8,7 electrons in its shells. It combines with Y havin...

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  13. Draw orbit structure diagram of: (a) sodium chloride (NaCl), (b) cal...

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  14. Compare : sodium atom and sodium ion

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  15. Compare : chlorine atom and chloride ion, with respect to (i) atomic ...

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  16. The electronic configuration of fluoride ion is the same as that of a ...

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  17. What do you understand by a redox reaction ? Give an example.

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  18. Oxidation and Reduction

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  19. Potassium (At. No. 19) and chlorine (At. No. 17) form a compound. Expl...

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  20. Potassium (At. No. 19) and chlorine (At. No. 17) form a compound. Expl...

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  21. Potassium (At. No. 19) and chlorine (At. No. 17) form a compound. Expl...

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