Electronic configuration of copper: Learn the electronic configuration of Copper (Cu)

Learn the electronic configuration of Copper (Cu) and its distribution of electrons in different shells. This guide explains Copper’s atomic structure in a simple and clear way for students and chemistry learners. Explain the anomalous behaviour of copper.Copper (Cu) has atomic number 29. Its expected electronic configuration is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 9. The 3d orbital is neither half-filled nor fully filled. Hence, it has less stability. Due to interelectronic repulsion forces, one 4s electron enters into a 3d orbital. This makes 3d orbital completely filled and 4s orbital half-filled which gives extra stability and the electronic configuration of Cu becomes, 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 ... Learn the electronic configuration of Copper (Z=29). Understand the Aufbau principle and why Copper is an exception, achieving stability with its [Ar] 3d10 4s1 structure. The arrangement of electrons in Copper in specific rules in different orbits and orbitals is called the electron configuration of Copper. The electron configuration of Copper is [Ar] 3d10 4s1 if the electron arrangement is through orbitals.