Consider the following elements: tellurium, rubidium, bismuth, astatine, and strontium.
Identify the element that would form both a covalent and an ionic bond. (Note: There could be more than one answer.) Explain.

• A. Tellurium, bismuth, and astatine can form both ionic and covalent bonds because they can accept electrons from metals and share electrons with another nonmetal.
• B. Tellurium, rubidium, and strontium can form both ionic and covalent bonds because they can accept electrons from metals and share electrons with another nonmetal.
• C. Tellurium, rubidium, and strontium can form both ionic and covalent bonds because they can accept electrons from nonmetals and share electrons with another metal.
• D. Tellurium, bismuth, and astatine can form both ionic and covalent bonds because they can accept electrons from nonmetals and share electrons with another metal.

Answer: (A)