Which statement about the Periodic Table is correct?

8.1.1. Describe the Periodic Table as an arrangement of elements in periods and groups and in order of increasing proton number / atomic number

8.1.2. Describe the change from metallic to non-metallic character across a period

8.1.3. Describe the relationship between group number and the charge of the ions formed from elements in that group

8.1.4. Explain similarities in the chemical properties of elements in the same group of the Periodic Table in terms of their electronic configuration

8.1.5. Explain how the position of an element in the Periodic Table can be used to predict its properties

8.1.6. Identify trends in groups, given information about the elements