The total number of valence electrons in 4.2 gm of N3^- ion is (Na is the Avogadro’s number ) The total number of valence electrons in 4.2 gm of N3^- ion is (Na is the Avogadro's number ) November 29, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,