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Why group 2 elements are harder than alk...

Why group 2 elements are harder than alkali metals?

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The strength of metallic bond in alkaline earth metals is higher than alkali metals due to the presence of 2 electrons in its outermost shell as compared to alkali metals, which have only 1 electron in valence shell. Therefore, alkaline earth metals are harder than alkali metals.
(ii) The alkaline earth metals have greater nuclear charge and more valence electrons, thusmetallic bonding is more effective. Due to this they are harder than alkali metals
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FULL MARKS-ALKALI AND ALKALINE EARTH METALS-Textual Evaluation Solved(II.write brief answer to the following questions)
  1. Write balanced chemical equation for the following processes: (a) h...

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  2. Explain the important common features of Group 2 elements

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  3. Why group 2 elements are harder than alkali metals?

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  4. How is plaster of paris prepared ?

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  5. Give the uses of gypsum.

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  6. Describe briefly the biological importance of calcium and magnesium.

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  7. Which would you expect to have a higher melting point, magnesium oxide...

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  8. Why sodium hydroxide is much more water soluble than chloride?

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  9. Write the chemical equations for the reactions involved in solvay proc...

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  10. An alkali metal (x) forms a hydrated sulphate, X2SO4.10H2O. Is the met...

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  11. Write balanced chemical equation for each of the following chemical re...

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  12. Discuss briefly the similarities between beryllium and aluminium

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  13. Give the systematic names for the following: (i) milk of magnesia ...

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  14. Substantiate lithium fluoride has the lowest solubility among group on...

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  15. Mention the uses of plaster of paris

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  16. Beryllium halides are covalent whereas magnesium halides are ionic. Wh...

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  17. Alk aline earth metal (A), belongs to 3rd period reacts with oxygen an...

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  18. Write balanced chemical equation for the following processes: (a) h...

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  19. Explain the important common features of Group 2 elements

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  20. Why alkaline earth metals are harder than alkali metals.

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