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the 3d orbital fills up before 4s...and you can write them in order of energy or by the numbers

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15y ago

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What is the complete electron configuration for the copper atom?

The complete electron configuration for the copper atom is 1s2 2s2 2p6 3s2 3p6 4s1 3d10.


What is the correct electron configuration for Cu?

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.


What is the configuration of cu?

1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d10 or [Ar]3d10, 4s1


Abbreviated electron configuration for copper?

The abbrieviated electron configuration of copper is [Ar] 4s23d9


What is the election configuration for As?

1s2 2s2 2p6 3s2 3d10 4s2 4p3


What is the condensed electron configurations for gallium?

2, 8, 18, 3[Ar] 4s2 3d10 4p1[1s2, 2s2 2p6, 3s2 3p6] 4s2, 3d10, 4p1


What element is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 5d1 4f4?

Technetium. The 4s2 is supposed to be written before the 3d10 and the 5s2 is supposed to be written before the 4d5.


What is the Electron configuration for Cu using spdf?

The electron configuration for Cu using spdf notation is 1s2 2s2 2p6 3s2 3p6 3d10 4s1 4p6.


Why electronic configuration of copper is 1s2 2s2 2p6 3s2 3p6 4s1 3d10 and why not 1s2 2s 2p6 3s2 3p6 4s2 3d9?

Because having a half-filled s sublevel, such as 4s1, followed by a filled d sublevel, such as 3d10 is more stable than having a filled s sublevel, such as 4s2, followed by a d sublevel that is almost full, such as 3d9, which is very unstable.


What is the unabbreviated electron configuration of xenon?

It is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6.


How many valence electrons does coper have?

Copper is element number 29. Thus, neutral copper has 29 protons and 29 electrons. The first 29 orbitals are filled as 1s2 2s2 2p6 3s2 3p6 4s1 3d10, thus copper has only one valence electron in its 4th shell.


What is the element with an electron configuration of 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5?

Bromine