Edexcel GCSE CC5 Ionic bonding

What is an ion?

• An atom that has lost or gained electrons

• An atom that has lost or gained neutrons

• An atom that has lost or gained protons

• An atom that is bonded to another atom

What is a cation?

• A negative ion

• A neutral ion

• A positive ion

• A group of ions

What is a anion?

• A negative ion

• A neutral ion

• A positive ion

• A group of ions

How are positive ions formed?

• The loss of electrons

• The gain of electrons

• The loss of neutrons

• The gain of neutrons

How are negative ions formed?

• The loss of electrons

• The gain of electrons

• The loss of neutrons

• The gain of neutrons

There are forces of attraction between positively and negatively charged objects. What are these forces of attraction called?

• Love

• Electrostatic forces

• Hydrogen bonding

• Metallic bonding

How many electrons are there in an atom of aluminium?

• 14

• 27

• 13

• 10

How many electrons are there in an ION of aluminium? (Al⁺³)

• 10

• 13

• 14

• 27

Ionic compounds are held together by electrostatic forces of attraction between oppositely charged atoms. Are these ionic bonds:

• Strong

• Weak

• Intermediate

• Brittle

Lithium oxide contains the ions: Li⁺ and O^2-. What is the ionic formula?

• Li⁺O^2-

• LiO

• Li₂O

• LiO₂