• # question_answer 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 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

Both are coinage metals $3{{d}^{10}}\,4{{s}^{1}}-Cu$;   $4{{d}^{10}}5{{s}^{1}}-Ag$