23k views

### Ground state electron configuration of chromium [duplicate]

What is the ground state electron configuration of chromium? Is it $\ce{[Ar]}4s^23d^4$ or Is it $\ce{[Ar]}4s^13d^5$
27k views

### Electron orbital diagram of vanadium [duplicate]

I am learning about electron configurations and I came across the "exceptions" of $\ce{Cr}$ and $\ce{Cu}$ where electrons actually half fill the $\mathrm d$ orbitals instead of the expected $\mathrm s$...
4k views

### Why do tungsten and chromium have different electronic configurations? [duplicate]

Why is the outer structure of tungsten $\mathrm{5d^46s^2}$ instead of $\mathrm{5d^56s^1}$? I try to explain this in comparison with outer structure of chromium $\mathrm{4d^55s^1}$ taking into ...
3k views

### Half-Filled Shells and Stability explanation [duplicate]

I am reading a book about Advanced Chemistry, and it is discussing the subject of half-filled orbitals. The book notes that Chromium has an electron structure of $1s^2 2s^2 2p^63s^23p^63d^54s^1$ ...
2k views

### Why 4s lose electron to 3d? [duplicate]

In chromium and copper, the are the configuration fill up like $$\mathrm{3d^5 4s^1}$$ but not $\mathrm{4s}$ first as it has lower energy level. and why only these 2 elements.
2k views

### Electron configuration from vanadium to chromium? [duplicate]

The electron configurations for vanadium is: $\ce{1s^2 2s^2 2p^2 3s^2 3p^6 3d^3 4s^2}$, and the electron configuration for chromium is: $\ce{1s^2 2s^2 2p^6 3s^2 3p^6 3d^5 4s^1}$. In looking at the ...
839 views

### Why does electron configuration in the periodic table is different when you follow the aufbau principle? [duplicate]

. In periodic table for example Ag has an electron configuration of [Kr] 4d10,5s1 but when you do it yourself using Aufbau principle it should be [Kr] 5s2 4d9. Why is that? When ask for Ag + valence ...
254 views

### Why tungsten does not have stable configuration? [duplicate]

Whenever there are 4 unpaired electrons in d-orbital, elements try to attain stable electronic configuration. For example copper. Electronic configuration of copper should be [Ar]3d4 4s2, but it ...
152 views