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An element A has 2 electrons in its, fou...

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

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ICSE-THE PERIODIC TABLE -EXERCISE 5(C)
  1. An element A has 2 electrons in its, fourth shell. State its valency

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

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

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

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  5. Name the first three alkaline earth metals.

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

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  7. How do alkaline earth metals occur in nature ?

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

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

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

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

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  12. Give reasons. Inert gases do not form compounds

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  13. Arrange the following: Elements of group 1, in increasing order of r...

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  14. Arrange the following: Elements of group 17, in decreasing order of ...

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  15. Arrange the following: He, Na, Mg (increasing order of melting point...

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  16. Arrange the following: Chlorine, sodium, magnesium (increasing reduc...

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  17. State the nature of compounds formed when group 17 elements combine wi...

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  18. Why group 17 elements are highly reactive ?

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  19. How many electrons do inert gases have in their valence shells ?

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  20. Name an element of group 18 which can form compounds.

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