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How do they (elements) usually exist?...

How do they (elements) usually exist?

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VGS PUBLICATION-BRILLIANT-CHEMICAL BONDING-EXERCISE
  1. Collect the information about properties and uses of covalent compound...

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  2. Write the Lewis structure of the given elements in the table. Also con...

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  3. How do they (elements) usually exist?

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  4. Why do some elements exist as molecules and some as atoms?

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  5. Are there elements which exist as atoms?

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  6. Why do some elements exist as molecules and some as atoms?

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  7. Why do some elements react vigorously while others are inert?

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  8. Why is the chemical formula for water H2O and for sodium chloride NaCl...

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  9. Why do some atoms combine while others do not?

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  10. Are elements and compounds simply made up of separate atoms individual...

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  11. Is there any attraction between atoms?

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  12. In pH sclae what is p and what is its meaning?

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  13. Why there is absorption of energy in certain chemical reactions and re...

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  14. Where the absorbed energy goes?

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  15. Is there any relation to energy and bond formation between atoms?

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  16. What could be the reason for the change in reactivity of elements?

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  17. What could be the reason for that?

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  18. What is specific heat? write the specific heat of copper?

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  19. What have you observed about the main groups?

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  20. Why do atoms of elements try to combine and form molecules?

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