Under what conditions does full-filled orbital undergo hybridisation?(such as in NH3)
Asked by Benjamin
| 10th Sep, 2015,
06:17: PM
Expert Answer:
Following are the features and conditions for hybridisation:
1. Only those orbitals which have approximately equal energies and belong to the same atom or ion can undergo hybridisation.
2. Number of hybrid orbitals produced is equal to the number of atomic orbitals mixed.
3. It is not mandatory that all the half-filled orbitals must participate in hybridisation, Also, it is not necessary that only half-filled orbitals should participate in hybridisation. Even completely filled orbitals with slightly different energies can also participate in hybridisation. This completely filled orbital with two electrons can act as lone pair of electrons as in case of ammonia.
4. Hybridisation never takes place in isolated atoms but it occurs only at the time of bond formation.
Thus, from the above points, the third condition explains why completely filled orbital such as 2s orbital in the case of ammonia, undergo hybridisation.
Following are the features and conditions for hybridisation:
1. Only those orbitals which have approximately equal energies and belong to the same atom or ion can undergo hybridisation.
2. Number of hybrid orbitals produced is equal to the number of atomic orbitals mixed.
3. It is not mandatory that all the half-filled orbitals must participate in hybridisation, Also, it is not necessary that only half-filled orbitals should participate in hybridisation. Even completely filled orbitals with slightly different energies can also participate in hybridisation. This completely filled orbital with two electrons can act as lone pair of electrons as in case of ammonia.
4. Hybridisation never takes place in isolated atoms but it occurs only at the time of bond formation.
Answered by Prachi Sawant
| 12th Sep, 2015,
05:26: PM
Concept Videos
- what is hybridisation?
- Explain the formation of
on the basis of hybridisation
- Among H2+ and H2- molecular ions which ion is more stable and why?
- How many lone pairs, bond pairs are present around S in SF4 molecule? What is their arrangement?
- Name one cation which is isostructural with NH3.
- Name the d- orbitals that are involved in sp3d2 hybridization
- What is the hybrid state of B in BF3, Al in AlCl3, Be in BeCl2, C in CO2 and C2H4; S in SO2 and SO3.
- Differentiate between valence bond theory and Lewis concept with regard to the formation of covalent bond.
- Explain the formation of sigma and pi bond.
- Define hybridization. Show the formation of ammonia (NH3) molecule.
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change