electron configuration for cation of Cr?  [ENDORSED]

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Ishan Saha 1L
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Joined: Fri Sep 29, 2017 7:03 am

electron configuration for cation of Cr?

Postby Ishan Saha 1L » Mon Oct 23, 2017 11:41 am

Hi! I was just wondering what the electron configuration would be of a cation of Cr, as Cr is an exception to the usual notation? So if one electron was lost from Cr, which has the neutral notation of [Ar](3d^5)(4s^1), what would the notation become?

Minie 1G
Posts: 63
Joined: Fri Sep 29, 2017 7:04 am

Re: electron configuration for cation of Cr?  [ENDORSED]

Postby Minie 1G » Mon Oct 23, 2017 12:00 pm

[Ar](3d^5)
You lose electrons from the largest number shell first (4th shell) here
and if you had even less electrons like it was Cr3+ then it would be [Ar](3d^3)


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