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Name the alkali metals. How many electro...

Name the alkali metals. How many electrons(s) do they have in their outermost orbit.

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ICSE-THE PERIODIC TABLE -EXERCISE 5(C)
  1. Moving down in the second group, number of valence electrons ........

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  2. Moving down in the second group, number of valence electrons ........

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  3. Name the alkali metals. How many electrons(s) do they have in their ou...

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  4. Take any one alkali metal and write its reaction with (i) oxygen (ii) ...

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  5. Name the method by which alkali metals can be extracted.

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  6. What is the colour of the flame of sodium and potassium ?

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  7. An element A has 2 electrons in its, fourth shell. State its atomic n...

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  8. An element A has 2 electrons in its, fourth shell. State its electroni...

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  9. An element A has 2 electrons in its, fourth shell. State its valency

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  10. An element A has 2 electrons in its, fourth shell. State position in t...

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  11. An element A has 2 electrons in its, fourth shell. State is it a metal...

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  12. An element A has 2 electrons in its, fourth shell. State is it an oxi...

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  13. Name the first three alkaline earth metals.

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  14. (a)Name the first three alkaline earth metals. (b) Write their react...

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  15. How do alkaline earth metals occur in nature ?

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  16. Write the electronic configuration of the first two alkaline earth met...

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  17. Give reasons. Alkali metals are kept in inert solvent.

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  18. Give reasons. Alkali metals and halogens do not occur free in nature...

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  19. Give reasons. Alkali and alkaline earth metal compounds usually form...

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  20. Give reasons. Inert gases do not form compounds

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