Why is Ga3+ electron configuration [Ar]3d^10 and not [Ar]4s^23d^10?
Is this because it is an ion, and how are you supposed to know it is not the second configuration?
Ga3+ electron configuration
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Re: Ga3+ electron configuration
hi, this is because the 3+ means it loses electrons and so the 3d includes the 4s automatically. I could be wrong but thats why I think its [Ar]3d^10.
Re: Ga3+ electron configuration
Hi,
The electron configuration for Ga should be [Ar] 4s2 3d10 4p1 so the configuration for Ga3+ is [Ar] 3d10 because the 3+ indicates that it has lost 3 electrons. Electrons from the lower energy orbitals are going to be lost first, which is why we take the 3 electrons from 4s2 and 4p1, leaving the remaining electrons in 3d10 (the higher energy orbital).
The electron configuration for Ga should be [Ar] 4s2 3d10 4p1 so the configuration for Ga3+ is [Ar] 3d10 because the 3+ indicates that it has lost 3 electrons. Electrons from the lower energy orbitals are going to be lost first, which is why we take the 3 electrons from 4s2 and 4p1, leaving the remaining electrons in 3d10 (the higher energy orbital).
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