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How to calculate or figure out the hybridization state,i.e. sp3 or sp2, etc? Explain in detail with an example.
By BYJU'S Exam Prep
Updated on: September 25th, 2023
The following formula can be used to forecast when a molecule or ion will hybridize: Number of Hybrid orbitals (H)= 1/2( No. of valence electrons in the valence shell of central atom the atom+ No. of monovalent atoms surrounding – Charge on cation + Charge on anion).
If the answer is:
- 2 = sp
- 3 = sp2
- 4 = sp3
- 5 = sp3d
- 6 = sp3d2
- 7 = sp3d3
Table of content
Example of How to Calculate the Hybridization State
NO3-: H=1/2[5 + 0 -0+1] =3; Hybridisation = sp2
CH4: H = 1/2[4 + 4 – 0 +0] =4 ; Hybridisation : sp3
BeF2: H=1/2[2 + 2 -0 + 0] = 2 ; Hybridisation : sp
SF6: H= 1/2[6+ 6 – 0 + 0] = 6 ; Hybridisation: sp3d2
BF3: H= 1/2[3 + 3 -0 + 0] = 3 ; Hybridisation : sp2
NH4+: H= 1/2[ 5+ 4 – 1 +0] = 4 ; Hybridisation =sp3
PCl5: H=1/2[5+5 – 0 + 0] = 5 ; Hybridisation: sp3d
CO32-: H=1/2[4+ 0 -0 +2] = 3 ; Hybridisation = sp2
It is impossible to anticipate the hybridization state of any complex ion using the aforementioned method.
Summary:
How to calculate or figure out the hybridization state,i.e. sp3 or sp2, etc? Explain in detail with an example.
The hybridization state can be found using the formula. Number of Hybrid orbitals (H)= 1/2( No. of valence electrons in the valence shell of central atom the atom+ No. of monovalent atoms surrounding – Charge on cation + Charge on anion). The examples are CH4, CO32-, BeF2, SF6 etc.