Question

Elements A and B with their respective electronic configurations $3d^{10}4s^{1}$ and $4d^{10}5s^{1}$ in their outermost shell are

• 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 1

Answer: (B)

Both coinage metals

Answer 2

Both are coinage metals

$3d^{10}4s^{1} - Cu$; $4d^{10}5s^{1} - Ag$