Which of the following elements has the same group number according to both the American and European conventions?

Question

Quizplus · Accepted Answer

According to both American and European conventions, elements in the same group have the same number of valence electrons and similar chemical properties. Cu (copper), Ag (silver), and Au (gold) are all transition metals in Group 11, which is sometimes called the coinage metals. Therefore, they have the same group number in both conventions.

Which of the Following Elements Has the Same Group Number