Group 1 elements have an average electronegativity of 0.84 (not including hydrogen). Group 17 elements have an average electronegativity of 2.99. These two groups often form bonds. Given this information, which kind of bond will they likely form (ionic or covalent), and what evidence supports your claim? If it is ionic, then include which group gives up its electron to the other group. In three to five sentences, explain your reasoning.
Based on the given information, it is likely that Group 1 elements will form ionic bonds with Group 17 elements. This is because Group 1 elements have low electronegativity values (0.84), indicating their tendency to lose electrons and form positively charged ions. On the other hand, Group 17 elements have high electronegativity values (2.99), indicating their strong attraction for electrons and tendency to gain electrons and form negatively charged ions.
Ionic bonds are formed between oppositely charged ions, which in this case, would be the positively charged Group 1 ions and the negatively charged Group 17 ions. The Group 1 elements would donate or lose their outermost electron(s) to the Group 17 elements, resulting in the formation of an ionic bond. This trend is supported by the difference in electronegativity values between the two groups, indicating a strong transfer of electrons and the formation of ions.