18.1.1 An Introduction to Reactivity

Question 1

What characteristic of carbon gives it its unique bonding properties?

Answer 1

Carbon has 4 valence electrons.

Question 2

What happens when a heterolytic bond is broken?

Answer 2

One atom gets a pair of electrons.

Question 3

What is a covalent bond?

Answer 3

A chemical bond that results from the sharing of electrons between two bonding atoms

Question 4

What kind of bond will form between 2 atoms if the electronegativity difference between them is greater than 0.5 but less than 1.9?

Answer 4

polar covalent

Question 5

In the following generalized reaction, which of the atoms receives the electrons from the cleavage of the A–H bond?
(A=C, N, O…)

δ− A–H δ+ + :B → A− + H–B+

Answer 5

A

Question 6

What is an ionic bond?

Answer 6

A chemical bond resulting from the transfer of electrons from one bonding atom to another

Question 7

What happens when a homolytic bond is broken?

Answer 7

Both atoms get one electron.

Question 8

In the following generalized reaction, which of the atoms loses the electrons from the cleavage of the A–H bond?
(A=C, N, O…)

B: + ^z+A - X^z+ —> B-A +X-

Answer 8

A

Question 9

What kind of bond will form between two atoms if the electronegativity difference is greater than 2.0?

Answer 9

ionic

Question 10

Which type of ions forms from one atom?

Answer 10

monatomic