Given following electron configurations, 1s22s22p63s23p4s23d104p65s4d9 and 1s22s22p63s3p4s23d104p65s4d10 Part 1: Name the element
Part 2: Both electron configurations are correct, and the second one is what is found most often in nature. Suggest a reason for why silver most often exists as an exception to the normal electron configuration rules

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).