MCQ
Elements $A$ and $B$ with their respective electronic configurations $3{d^{10}}\,4{s^1}$ and $4{d^{10}}\,5{s^1}$ in their outermost shell are
- ABoth non-metals
- ✓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
