How are elements arranged in the Periodic Table?
B
A new element has been made in laboratories with a proton number of 117. Scientists have placed it in Group VII. Which two properties can scientists expect element 117 to have? Choose two answers.
C
How many electrons do Group VI elements have in their outer shells?
A
This graph shows the melting and boiling points of Group VII elements:
A
Which statement about the Periodic Table is true?
D
4. Sara watched a demonstration to react sodium metal with water. The method is: • Half fill a trough with water and add several drops of Universal Indicator. • Using tweezers, place a small piece of sodium metal on the surface of the water
C