Use this picture for questions 1-2 С
D
B
How do properties of elements in the same group of the Periodic Table compare?
| Elements in the same group exhibit similar chemical reactivity within the group.
II. Elements in the same group have the same number of electron shells within the group.
III. Elements in the same period share
physical properties within the group
IV. Elements in the same group contain the same number of valence electrons within the group