Explain why do the group 1 and group 2 elements form diamagnetic and colourless compounds.

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1 Answers

  • Unipositive ions of all the elements of group 1 have inert gas configuration and hence, they have no unpaired electron.
  • Similarly, group 2 elements can lose their two valence shell electrons and form divalent ions that have inert gas configuration with no unpaired electrons.

Hence, due to the absence of unpaired electrons, compounds formed by group 1 and group 2 elements are diamagnetic and colourless.

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