Final answer:
Elements in group 1 need to lose 1 electron, while elements in groups 14 and 17 need to gain 4 electrons and 1 electron, respectively, to achieve a stable electron configuration.
Step-by-step explanation:
According to the information provided, elements in group 1 need to lose 1 electron to achieve a stable electron configuration. On the other hand, elements in groups 14 and 17 need to gain 4 electrons and 1 electron, respectively, in order to achieve a stable configuration.