Top 2 - Bonding Structure and Properties of Matter

Question 1

Describe how covalent bonds form.

Answer 1

Covalent bonds form when non-metal atoms bond together, they share Paris of electrons to make covalent bonds.

Question 2

List the main properties of ionic compounds.

Answer 2

High Melt
High Boil
A lot of energy needed to brake intermolecular bonds
Don’t conduct electricity in solid
Do conduct electricity in liquid or dissolved form
Some are soluble.

Question 3

What are simple molecular substances?

Answer 3

Simple molecular substances are substances made up of molecules containing a few atoms joined together by covalent bonds.

Question 4

Explain why simple molecular compounds typically have low melting and boiling points.

Answer 4

Because although the atoms within the molecules are held together by very strong covalent bonds, the forces of attraction between the actual molecules are very weak

Question 5

Give the definition of a polymer

Answer 5

Polymers are long chains of repeating units

Question 6

Give three examples of Giant Covalent Structures.

Answer 6

Diamond
Graphite
Graphene

Question 7

What is metallic bonding?

Answer 7

Electrostatic attraction between positive metal ions and delocalised electrons

Question 8

Describe how an ionic bond forms.

Answer 8

Metal atoms lose the electron, or electrons, in their highest energy level and become positively charged ions. Non-metal atoms gain an electron, or electrons, from another atom to become negatively charged ions.

Question 9

List three properties of metals

Answer 9

Malleable Good conductors of electricity and heat Solid at room temperature.