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Explain the trend in atomic radii on mov...

Explain the trend in atomic radii on moving down a group, with reference to the alkali metals in Group 1 [IA].

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On moving down the group atomic and ionic radii of alkali metals increases.
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AAKASH INSTITUTE ENGLISH-THE S-BLOCK ELEMENTS-Try Yourself
  1. Write the reason behind the digonal relationship among element.

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  2. Which of the following is the correct electronic configuration of pota...

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  3. Explain the trend in atomic radii on moving down a group, with referen...

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  4. Which one of the following alkali metals gives hydrated salts?

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  5. Why does the ionisation energy decrease on going down a group?

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  6. Among potassium and sodium which one is lighter metal?

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  7. What colour is imparted by Rubidium in flame test?

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  8. Which alkali metal do not show photoelectric effect?

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  9. Why are potassium and caesium rather than lithium used in photoelectri...

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  10. What do metal oxides form when they react with water?

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  11. K, Rb and Cs form mainly superoxides.

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  12. Which compound is formed when lithium reacts directly with nitrogen in...

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  13. What is electrode potential?

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  14. If an element has more negative value of electrode potential, then wha...

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  15. Apart from water, alkali metals react with which kind of compounds?

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  16. Mention the important properties of saline hydrides

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  17. Except for lithium, alkali metals form their hydrides at what temperat...

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  18. Why are lithium halides partially covalent ? Explain with examples.

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  19. Among the alkali metals, which element has the highest reducing power...

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  20. If standard electrode potential of an element x is -1.70V and of anoth...

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