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Tow elelments 'I' and 'Q' belong to the ...

Tow elelments 'I' and 'Q' belong to the same periiod of the modern periodic table and
are in Group-1 and Group-2 respectively. Compare their following characteristics in
tabular from:
(a) The number of electrons in their atoms
(b) The sizes of their atoms
(c) Their matallic characters
(d) Their tendencies to loes electrons
(e)The formula of their oxides
(f) The fornula of their chlorides

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ICSE-THE PERIODIC TABLE -EXERCISE 5(C)
  1. Give reasons. Alkali and alkaline earth metal compounds usually form...

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  2. Give reasons. Inert gases do not form compounds

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

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

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

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

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

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  8. Why group 17 elements are highly reactive ?

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

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

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  11. Name the gas used in : filling balloons

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  12. Name the gas used in : light bulbs

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  13. Name the gas used in : bright coloured advertising light works

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  14. Why group 17 elements are called halogens?

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  15. Comment on the (i) reactivity (ii) colour and (iii) physical state of ...

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  16. Two elements 'P' and 'Q' belong to the same period of the modern perio...

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  17. Tow elelments 'I' and 'Q' belong to the same periiod of the modern per...

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  18. Tow elelments 'I' and 'Q' belong to the same periiod of the modern per...

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  19. Tow elelments 'I' and 'Q' belong to the same periiod of the modern per...

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  20. Tow elelments 'I' and 'Q' belong to the same periiod of the modern per...

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