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Valence electrons

Posted: Wed Oct 30, 2019 9:58 am
by lauraxie2e
What would be an example of an element that the d orbitals effect the number of valence electrons?

Re: Valence electrons

Posted: Wed Oct 30, 2019 10:05 am
by Marni Kahn 1A
PCl5 (phosphorus pentachloride), since P has 10 valence electrons

Re: Valence electrons

Posted: Wed Oct 30, 2019 10:55 am
by DesireBrown1J
Phosphorus actually has 5 valence electrons because its electron configuration is [Ne]3s23p3. 3s23p3 are the outermost orbitals and have the highest energy levels, which make the electrons in here the valence electrons.

Re: Valence electrons

Posted: Wed Oct 30, 2019 11:45 am
by Jessica Li 4F
However, since phosphorus has a technically empty 3d orbital, it can bond to other elements in a way so that it can have up to 10 valence electrons, as with PCl5.
Hope that clarifies things!

Re: Valence electrons

Posted: Wed Oct 30, 2019 8:59 pm
by stephaniekim2K
Sulfur, Phosphorous, and Chlorine all deviate from the octet rule because they have the extra d orbitals.

Re: Valence electrons

Posted: Thu Oct 31, 2019 9:13 pm
by Cassandra_1K
How do you know when anions cannot behave as a lewis base?