2.13 - Covalent Bonding

Question 1

How is a covalent bond formed?

Answer 1

When orbitals from two atoms, each containing one electron, overlap

Question 2

What is a covalent bond?

Answer 2

A shared pair of electrons

Question 3

What is a sigma bond?

Answer 3

The overlapping of two s-orbitals or p-orbitals, end on

Question 4

What is a pi bond?

Answer 4

The sideways overlapping of two p-orbitals

Question 5

What does a sigma bond formation lead to?

Answer 5

The formation of a single covalent bond

Question 6

What is special about a pi bond?

Answer 6

There are two electron clouds, and they can’t form until a sigma bond has formed

Question 7

What type of covalent bond is formed by the combination of a sigma and pi bond?

Answer 7

A double or triple covalent bond

Question 8

What type of covalent bond is strongest?

Answer 8

A multiple bond

Question 9

What is the relationship between bond length and strength?

Answer 9

The shorter the bond, the stronger the bond

Question 10

Why?

Answer 10

Because there is an increase in electrostatic attraction between the two nuclei and electrons in the overlapping orbitals