Respuesta :

The answer is"bonding molecular orbital".
There are types of molecular orbitals that are pi molecular orbitals, sigma molecular orbitals,bonding molecular orbitals and anti-bonding molecular orbitals. Bonding and anti-bonding molecular orbitals are opposite to each other as their name shows, bonding molecular orbitals is  low in energy where the anti-bonding orbital is higher in energy.

A [tex]\boxed{{\text{bonding}}}[/tex] molecular orbital is lower in energy than the atomic orbital of which it is composed.

Further Explanation:

Atomic Orbital:

The wave nature of electrons present in any atom is expressed by a mathematical function, known as atomic orbital. This wave function is used for determining the probability to find electrons in specific region around atomic nucleus.

Molecular orbitals:

These orbitals are formed by permitted interactions between atomic orbitals. Such orbitals are formed only if symmetries of bonded atomic orbitals match with each other. The number of atomic orbitals results in formation of same number of molecular orbitals.So if n atomic orbitals combine with each other,n molecular orbitals will result.

Following molecular orbitals are formed by interaction between atomic orbitals:

1. Bonding molecular orbitals

These orbitals are formed by constructive interference of waves of different atomic orbitals. Such orbitals are used to depict attractions between atomic orbitals. When electrons are placed in bonding molecular orbitals, this leads to bond strengthening and stabilization of resulting molecule. Hence such orbitals have lower energy, even less than that of combining atomic orbitals.

2. Antibonding molecular orbitals

These orbitals are formed by destructive interference of waves of different atomic orbitals. When electrons are placed in antibonding molecular orbitals, these experience greater repulsion, thereby resulting in repulsion between the combining nuclei.Suchelectrons tend to destabilize it so the energy of the anti-bonding molecular orbitals is higher.

3. Nonbonding molecular orbitals

The energy of such orbitals remains unaffectedif electrons are added or removedfrom them. These orbitals are considered equivalent to lone pairsrepresented in Lewis structures. The only difference is nonbonding molecular orbitals are used up in molecular orbital theory.

Therefore bonding molecular orbitals have lower energy than combining atomic orbitals.

Learn more:

  1. Which molecule cannot be adequately described by a single Lewis structure/ https://brainly.com/question/6786947
  2. Do carbon dioxide and water have the same geometry? https://brainly.com/question/2176581

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Chemical bonding and molecular structure

Keywords: atomic orbitals, molecular orbitals, Lewis structures, lone pairs, bonding, antibonding, nonbonding, molecular orbitals, constructive interference, destructive interference, electrons, energy.