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    Chemistry
    Grade-9
    Easy

    Question

    What happens to the boiling and melting points of the alkaline earth metals as you move down the group? 

    1. Increases 
    2. Decreases 
    3. Remains the same
    4. Varies randomly 

    Hint:

    Down the group metallic bond strength decreases.

    The correct answer is: Decreases 

      • Both melting point and boiling point decreases down the group.
      • This reflects the decrease in the strength of each metallic bond.
      • The atoms in a metal are held together by the attraction of the nuclei to electrons which are delocalized over the whole metal mass.

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