How do you draw the electron configuration diagram for copper?

To draw the electron configuration diagram for copper, follow these steps:

Determine the Electron Configuration: Copper (Cu) has an atomic number of 29, which means it has 29 electrons. The electron configuration for copper is:

Cu: 
1
𝑠
2
 
2
𝑠
2
 
2
𝑝
6
 
3
𝑠
2
 
3
𝑝
6
 
4
𝑠
1
 
3
𝑑
10
Cu: 1s
2
2s
2
2p
6
3s
2
3p
6
4s
1
3d
10


Note that copper is an exception to the expected configuration due to stability reasons, and it actually has one electron in the 4s orbital and ten electrons in the 3d orbital.

Draw the Orbital Diagram:

1s Orbital: Draw a single box (or line) and label it as 1s. Fill it with two electrons, using up and down arrows to represent the electrons.
2s Orbital: Draw a box (or line) for 2s and fill it with two electrons.
2p Orbitals: Draw three boxes (or lines) for the 2p orbitals. Fill each box with two electrons, one with an up arrow and one with a down arrow, for a total of six electrons.
3s Orbital: Draw a box (or line) for 3s and fill it with two electrons.
3p Orbitals: Draw three boxes (or lines) for the 3p orbitals and fill each with two electrons (total of six electrons).
4s Orbital: Draw a box (or line) for 4s and fill it with one electron.
3d Orbitals: Draw five boxes (or lines) for the 3d orbitals. Fill each box with one electron before pairing them (Hund's Rule), totaling ten electrons.
Electron Configuration Summary: The diagram will show:

1s with 2 electrons
2s with 2 electrons
2p with 6 electrons
3s with 2 electrons
3p with 6 electrons
4s with 1 electron
3d with 10 electrons
This arrangement reflects the actual electron configuration of copper, which is stable due to the filled 3d subshell.