The bond order of a nitrogen molecule N2 in its ground state can be determined using molecular orbital theory. Nitrogen has 5 valence electrons, so in a N2 molecule, there are a total of 10 valence electrons.The molecular orbitals for N2 are filled in the following order: 1s, *1s, 2s, *2s, 2px, 2py, 2pz, *2px, *2py, and *2pz.Filling the molecular orbitals with 10 valence electrons, we have:- 2 electrons in 1s- 2 electrons in *1s- 2 electrons in 2s- 2 electrons in *2s- 2 electrons in 2px and 2py remains empty Now, we can calculate the bond order using the formula:Bond order = number of electrons in bonding orbitals - number of electrons in antibonding orbitals / 2Bond order = 8 - 4 / 2 = 4 / 2 = 2So, the bond order of the nitrogen molecule N2 in its ground state is 2. This means that there is a double bond between the two nitrogen atoms.