Final answer:
Rubidium (Rb) can make an ionic bond with francium.
Step-by-step explanation:
Rubidium (Rb) can make an ionic bond with francium.
The statement is true.
An ionic bond is formed between two atoms when one atom transfers electrons to another atom. Rubidium can form an ionic bond with francium because rubidium has one valence electron that it can give away, and francium requires one more electron to complete its valence electron shell. This transfer of electrons results in the formation of a positively charged rubidium ion (Rb+) and a negatively charged francium ion (Fr-), which are attracted to each other and form an ionic bond.