Iodine and potassium form an ionic bond. iodine has seven electrons in its outer shell, and potassium has one electron in its outer shell. which conclusion is best supported by this information?

Which of the following was a social cost associated with the development of the internal combustion engine used in most cars? a. people were able to use their horses for new tasks. b. new jobs were created. c. blacksmiths needed to gain new skills to continue working. d. families were able to travel farther more easily.