1.

Write any four characteristics of periods.

Answer»
  • In a period, the electrons are filled in the same valence shell of all elements. 
  • As the electronic configuration changes along the period, the chemical properties of the elements also change. 
  • The atomic size of the elements in a period decreases from left to right 
  • In a period, die metallic character of the element decreases, while their non-metallic character increases.


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