Write the electron configuration of Cd2+

In summary: So, the configuration of Cd2+ is [Kr]4d10.In summary, the electron configuration of Cd2+ is [Kr]4d10. The notation of [Kr] indicates the use of noble gas configuration as a basis, and the removal of two electrons from the outer-shell results in the final configuration of 4d10. So, the correct configuration for Cd2+ is [Kr]4d10.
  • #1
jupiter_8917
5
0
Write the electron configuration of Cd2+

Is It right if I write it like this 1s^2 2s^2 2p^6 3s^1 3p^6 3d^10 4s^2 4p^6 5s^2 4d^10?

Can anyone please correct me if it is wrong? Thank you very much!
 
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  • #2
5s24d10 looks to me like neutral atom, not a cation.

Why 3s1? Is it just a typo?
 
  • #3
Hi,
In order for Cd to form Cd2+, Cd has to lose its 2e- in the outer-shell. So, take a look at your configuration, you are having the configuration for the neutral Cd, you need to remove 2 outer e- to get the right configuration. And also don't forget the "reminder" from Mr. Borek about the 3s1 typo.

Good Luck!
 
  • #4
do you mean it need to be like this in order to form Cd2+? 1s^2 2s^2 2p^6 3s^1 3p^6 3d^10 4s^2 4p^6

thanks again,
 
  • #5
Sorry for the confusion. Electron configuration of Cd can be given as [Kr]5s24d10 - that is very convenient short hand notation, that uses noble gas configuration as its basis. Configuration of Kr is 1s22s22p63s23p64s23d104p6, so [Kr]5s24d10 means 1s22s22p63s23p64s23d104p65s24d10 - that's configuration of neutral Cd atom. I was referring to this notation and just to the last two subshells.

[Kr]5s24d10 is a configuration of the neutral atom. As it was said several times - to make Cd2+ you have to remove two electrons.
 
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FAQ: Write the electron configuration of Cd2+

What is the electron configuration of Cd2+?

The electron configuration of Cd2+ is [Kr]4d10.

How many electrons does Cd2+ have?

Cd2+ has 48 electrons.

What is the orbital diagram for Cd2+?

The orbital diagram for Cd2+ is 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2 1S0 1P1 3P2 1D2.

What is the noble gas configuration for Cd2+?

The noble gas configuration for Cd2+ is [Kr].

What is the total number of orbitals in the electron configuration of Cd2+?

The total number of orbitals in the electron configuration of Cd2+ is 18.

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