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How does the number of valence electrons vary on moving from left to right: (i) In the first period of the periodic table? In the second period of the periodic table?

ChemistryClass 10ICSEAnswered 27 Mar 2026
Answer
  • The number of valence electrons increases from 1 to 2 in the 1st period of the periodic
  • The valence electrons increase from 1 to 8 in the 2nd period of the periodic
Chemistry · Class 10