How can Palladium have 10 valence electrons if the valence is full at 8?

[hellonurse]

😀

Easy question, I'm misunderstanding something though..
How can Palladium have 10 valence electrons if the valence is full at 8?

If the valence shell is the outermost shell, how can Palladium have 10 electrons in its outermost shell even though a shell only can have 8 (octet rule). I am not looking for the 4d(10) response, because I undestand how the periodic table works. I just don't get how a diagram of these Palladium could have one outermost (valence) shell with ten electrons in it. What am I missing?

---

Members don't see this ad.

 

[NyCzPeter]

Transition metals are weird and in the case of Pd, having the 4d shell filled with 10 valence electrons results in a more stable state. Don't worry too much about the transition metals, non of them really matter except Pd, Pt, Ni catalytic hydrogenation ftw

 

[Contach]

😀

Easy question, I'm misunderstanding something though..
How can Palladium have 10 valence electrons if the valence is full at 8?

If the valence shell is the outermost shell, how can Palladium have 10 electrons in its outermost shell even though a shell only can have 8 (octet rule). I am not looking for the 4d(10) response, because I undestand how the periodic table works. I just don't get how a diagram of these Palladium could have one outermost (valence) shell with ten electrons in it. What am I missing?

I don't think you understand what the 4d shell is.. There is no way to answer your question without talking about the 4d shell.