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Answer to Question #88510 in Chemistry for karina
Question #88510
what species has the electron configuration [Ar]3d^4?
Mn2+?
Cr2+?
v3+?
Fe3+?
k+?
Mn2+?
Cr2+?
v3+?
Fe3+?
k+?
Expert's answer
What species has the electron configuration [Ar]3d^4?
Mn2+?
Cr2+?
v3+?
Fe3+?
k+?
Solution:
1.[Ar]3d^4 means 22 electrons.
2.Cr has 24 electrons, but Cr 2+ has 22 electrons.
Answer: Cr 2+ has the electron configuration [Ar]3d^4.
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