Give the number of electrons in the species H+2, H2 and O+2
H+2 :
Number of electrons present in hydrogen molecule (H2) = 1 + 1 = 2
∴ Number of electrons in H+2=2−1=1
H2 :
Number of electrons in H2 = 1 + 1 = 2
O+2 :
Number of electrons present in oxygen molecule ( O2 ) = 8 + 8 = 16
Number of electrons in O+2 = 16 – 1 = 15