The observed electronic configuration of copper is
A. [Ar]18 3d9 4s2
B. [Kr] 3d10 451
C. [Kr] 3d9 4s2
D. [Ar] 3d10 451
Answer:D
The observed electronic configuration of copper is
A. [Ar]18 3d9 4s2 B. [Kr] 3d10 451 C. [Kr] 3d9 4s2 D. [Ar] 3d10 451