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Why is the ionisation enthalpy of magnes...

Why is the ionisation enthalpy of magnesium higher than that of potassium ?

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Due to smaller atomic size
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ICSE-THE s - BLOCK ELEMENTS-VERY SHORT ANSWER TYPE QUESTIONS
  1. What is the nature of an aqueous solution of sodium carbonate?

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  2. Which compond of sodium is used for washing purposes in laundry ?

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  3. Why is the ionisation enthalpy of magnesium higher than that of potass...

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  4. What is the formula of hypo?

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  5. What is the role of hypo in photography?

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  6. Write the chemical formulae of the following: Quick lime, slaked lim...

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  7. Name three common forms of CaCO3.

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  8. Write the chemical formula of plaster of Paris.

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  9. Who discovered cement?

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  10. In what form does magnesium chloride occur in nature?

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  11. Can anhydrous magnesium chloride be prepared by heating the hydrated s...

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  12. Why is magnesium oxide used as a refractory material?

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  13. What is the chemical composition of Sorel's cement?

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  14. What are the main chemical constituents of cement?

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  15. What do you understand by concrete and RCC ?

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  16. What is the temperature in the rotary Kiln used for the manufacture of...

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  17. Name a substance which could be added to cement without affecting its ...

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  18. Name the alkali metals which form superoxides when heated in excess of...

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  19. Name the metal which floats on water without any apparent reaction wit...

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  20. Name the chief factor responsible for the anomalous behaviour of lithi...

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