Elements `A` and `B` with their respective electronic configurations `3d^(10)4s^(1)` and `4d^(10)5s^(1)` in their outermost shell are

Options

A. Both non-metals
B. Both coinage metals
C. A is a non-metal and B is coinage metal
D. A is a coinage metal and B is non-metal

Answer

B

Explanation

Both are coinage metals
`3d^10 4s^1 - Cu , 4d^10 5s^1 - Ag`.