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Electron Configurations
300
The electron configuration for copper is this.
What is 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
9
, or [Ar]4s
2
3d
9
.
400
The electron configuration of this element is 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
6
5s
2
4d
9
.
What is Ag (silver).
500
The electron configuration of lead is this.
What is 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
6
5s
2
4d
10
5p
6
6s
2
4f
14
5d
10
6p
2
, or [Xe]6s
2
4f
14
5d
10
6p
2
.