Chemistry Test (Structure and Bonding)

Question 1

Electronic Structure of Atoms:

Answer 1

Distribution of electrons in shells.

Question 2

Why do atoms bond with each other?

Answer 2

In order to achieve a more stable state by filling their outer shell with electrons either by transferring electrons or by sharing electrons.

Question 3

Do metals have a small or large number of valence electrons?

Answer 3

Small (1,2, or 3)

Question 4

Do non metals have a small or large number of valence electrons?

Answer 4

Large (4,5,6,7, or 8)

Question 5

Ionic bonding:

Answer 5

Electron transfer (loss and gain of electrons)

Question 6

When does ionic bonding take place?

Answer 6

When a metal reacts with a non metal

Question 7

What are positive ions called?

Answer 7

Cations

Question 8

What are negative ions called?

Answer 8

Anions

Question 9

Structure of ionic compounds:

Answer 9

Cations and anions are arrange in a giant structure called “Giant Ionic Lattice”

Question 10

Formula of an ionic compound:

Answer 10

Simplest whole number ratio between cations and anions.

Question 11

What is a covalent bond?

Answer 11

Force of attraction between 2 positive nuclei of 2 atoms and shared pair (s) of electrons.

Question 12

Metallic bonding occurs between:

Answer 12

Metal atoms

Question 13

What is metallic bonding?

Answer 13

The electrostatic attraction between positive metal ions and delocalised electrons.

Question 14

Factors that affect metallic bonding:

Answer 14

1. Size of the cation
2. The number of valence electrons per atom
3. The charge of the metal ion

Question 15

Physical properties of metals:

Answer 15

1. Good electric conductivity
2. Good thermal conductivity
3. Malleable and ductile
4. High melting point