Organic Chemistry Lecture 2

Question 1

What is the valence bond theory?

Answer 1

Bonding theory that describes a covalent bond as resulting from the overlap of two atomic orbitals

Electrons are paired in the overlapping orbitals and are attracted to nuclei of both atoms, thus bonding the two atoms together.

Question 2

Describe H-H bonds

Answer 2

H-H bonds result from the overlap of two singly occupied hydrogen 1s orbitals

H-H is cylindrically symmetrical

Question 3

What are sigma bonds?

Answer 3

Bonds formed by head on overlap of two atomic orbitals along a line drawn between the nuclei