Final answer:
An element from group 2 will indeed bond ionically with elements from group 17 as group 2 elements form 2+ ions while group 17 elements, or halogens, form 1- ions, leading to ionic bonds.
Step-by-step explanation:
The statement that an element from group 2 on the periodic table will bond ionically with elements from group 17 (7A) is true. Group 2 elements are known as the alkaline earth metals and they have two valence electrons. These elements tend to form 2+ ions when they react. On the other hand, group 17 elements are known as halogens and they each have seven valence electrons. They tend to gain one electron when they react, forming 1- anions. When a group 2 element reacts with a group 17 element, the group 2 element typically loses two electrons to form a 2+ ion, and two group 17 atoms each gain one electron to form two 1- ions, resulting in an ionic bond between them.