Copper's atomic number is 29. Filling in the first 29 orbitals gives the configuration of 1s2 2s2 2p6 3s2 3p6 4s1 3d10. Seeing as how there is only one electron in the 4 shell, coppers valence electron configuration is thus 4s1.
The electron configuration of copper at an excited state is [Ar] 3d104s1. In the excited state, one of the 4s electrons is promoted to the 3d orbital to achieve a half-filled d orbital, which is a more stable configuration.
The element with Ar4s2 3d9 electron configuration is cobalt (Co).
Copper has a partially filled d orbital to achieve greater stability. Hence, it gives up one electron from the 4s orbital to make the 3d orbital completely filled with 10 electrons, which is a more stable configuration. This results in the electron configuration of 3d10 4s1 for copper rather than 3d9 4s2.
The electron configuration of copper is [Ar] 3d^10 4s^1. This means that copper has 29 electrons, filling up the 3d subshell completely with 10 electrons before moving on to the 4s subshell, where one electron is present.
The shorthand electron configuration of magnesium is [Ne]3s2.
The electron configuration for copper is Ar 3d10 4s1.
The electron configuration of copper is Ar 3d10 4s1.
The condensed electron configuration for copper is Ar 3d10 4s1.
The electron configuration of copper (Cu) is Ar 3d10 4s1.
The electron configuration of copper is 1s22s22p63s23p63d104s1.
The electron configuration of copper(II) is [Ar] 3d9 . Copper is [Ar] 3d10 4s1
The electron configuration of a Copper(II)ion is [Ar]4s0 3d9.
The electron configuration of copper is: [Ar]4s13d10. It isn't 4s23d9 because Cu is able to obtain a more stable electron configuration when it takes an electron from the 4s and adds it to 3d. A half filled 4s and a completely filled 3d is more stable.
The complete electron configuration for the copper atom is 1s2 2s2 2p6 3s2 3p6 4s1 3d10.
The expected ground-state electron configuration of copper is ; however, the actual configuration is because a full dsubshell is particularly stable. There are 18 other anomalous elements for which the actual electron configuration is not what would be expected.
The abbrieviated electron configuration of copper is [Ar] 4s23d9
The ground-state electron configuration for copper (Cu) using noble-gas shorthand is Ar 3d10 4s1.