The abbrieviated electron configuration of copper is [Ar] 4s23d9
1s2 2s2 2p6 3s2 3p6. 4s2 3d9
[Ar]4s2 3d9
The element argon (atomic number 18) has the electron configuration 1s22s22p63s23p6 which can be abbreviated [Ne] 3s23p6
no...
[He] 2s one
the abbreviated electron configuration of sodium is (Ne) 3s1
Electron Configuration: 1s2 2s2 2p4 Abbr: [He] 2s2 2p4
abbreviated electron configuration = e.c.
The abbreviated electron configuration of sodium is [Ne]3s1.
The electron configuration of boron is [He]2s2.2p1.
The element argon (atomic number 18) has the electron configuration 1s22s22p63s23p6 which can be abbreviated [Ne] 3s23p6
no...
[Kr]
The electron configuration of nobelium is [Rn]5f14.7s2.
[He] 2s one
the abbreviated electron configuration of sodium is (Ne) 3s1
Electron Configuration: 1s2 2s2 2p4 Abbr: [He] 2s2 2p4
The electron configuration of copper(II) is [Ar] 3d9 . Copper is [Ar] 3d10 4s1
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.