Which molecular orbital has lowest energy for B2?

Explanation: Energy of bonding orbitals is less than antibonding orbital so σ2px has lowest energy than other given.

What is the bond order of B2 −?

So the bond order of B2 is equal to 1, which you can get by drawing the molecular orbital diagram and performing the equation Bond Order = . 5 * (# of bonding electrons – # of antibonding electrons). However, when you draw the Lewis structure of B2, you get a triple bond.

What is the molecular orbital diagram of boron?

Each boron atom has one 2s and three 2p valence orbitals. The 2s orbitals will overlap to form 2sσ and 2sσ* orbitals. The 2px orbitals can overlap end-on to form 2pσ and 2pσ* orbitals. The 2py and 2pz orbitals can overlap side-on to form degenerate pairs of 2pπ and 2pπ* orbitals.

What are some examples of molecular orbitals?

Examples are H 2, N 2, O 2, F 2, B 2, and C 2 Two different atoms combine together to form hetero-nuclear diatomic molecular orbitals. Examples are CO, HF, LiF, and NO. Two s atomic orbitals together form σ bonding orbital and σ* anti-bonding orbital.

What is molecular orbital model?

The molecular orbital model takes a different approach. It utilizes all of the orbitals on all of the atoms to generate a set of orbitals that extend over all of the atoms on the whole molecule. The molecular orbital model is more difficult to visualize, but it is also more powerful.

What is MO theory in chemistry?

In chemistry, Molecular orbital ( MO) theory is a method for describing the electronic structure of molecules using quantum mechanics. Electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole molecule.

What is the molecular orbital theory of oxygen?

According to molecular orbital theory, the electron configuration of triplet oxygen has two electrons occupying two π molecular orbitals (MOs) of equal energy (that is, degenerate MOs). In accordance with Hund’s rules, they remain unpaired and spin-parallel and account for the paramagnetism of molecular oxygen.