Atoms lose or gain electrons to become ions. Which row is correct?

2.4.1. Describe the formation of positive ions, known as cations, and negative ions, known as anions

2.4.2. State that an ionic bond is a strong electrostatic attraction between oppositely charged ions

2.4.3. Describe the formation of ionic bonds between elements from Group I and Group VII, including the use of dot-and-cross diagrams

2.4.4.1. high melting points and boiling points

2.4.4.2. good electrical conductivity when aqueous or molten and poor when solid

2.4.5. Describe the giant lattice structure of ionic compounds as a regular arrangement of alternating positive and negative ions

2.4.6. Describe the formation of ionic bonds between ions of metallic and non-metallic elements, including the use of dot-and-cross diagrams

2.4.7.1. high melting points and boiling points

2.4.7.2. good electrical conductivity when aqueous or molten and poor when solid