Question

In: Chemistry

Which pair of elements from different groups resemble each other the most in their chemical properties?...

Which pair of elements from different groups resemble each other the most in their chemical properties? Be and B Al and Si O Li and Mg Be and C

Solutions

Expert Solution

Li and Mg resemble the most because of the following reasons

  1. Li and Mg have almost similar electronegativities
  2. Both Li and Mg are harder and lighter than other elements in their respective grounps
  3. Hydroxides of Li and Mg are weak bases.
  4. In nitrogen atmophere both Li and Mg gives ionic nitrides on heating.
  5. Hydroxides of both decompose on heating producing their oxides
  6. Both on reaction with oxides give monoxide
  7. The hydroxides, carbonates, oxalates, phosphates,and flurides of both Li and Mg are sparingly soluble in water

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