## Question 4.43 (Sixth Edition)

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

Steve Magana 2I
Posts: 61
Joined: Fri Sep 28, 2018 12:24 am

### Question 4.43 (Sixth Edition)

Question: Noting that the bond angle of an sp3 hybridized atom
is 109.5 and that of an sp2 hybridized atom is 120, do you expect the bond angle between two hybrid orbitals to increase or decrease as the s-character of the hybrids is increased?

Can someone help me with this question please? Thank you!

Fionna Shue 4L
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

### Re: Question 4.43 (Sixth Edition)

In an sp3 orbital, it is 25% s-character and 75% p-character. In an sp2 orbital, it is 33% s-character and 67% p-character. Bond angle increases from sp3 to sp2 so bond angle increases as as the s-character of a hybrid orbital increases.

Alma Carrera 3C
Posts: 33
Joined: Fri Apr 06, 2018 11:02 am

### Re: Question 4.43 (Sixth Edition)

The s-character is the percentage of the s-orbital in the hybrid. If it is a larger percentage that means their are less bonds and so the bond angles will be larger.