Electron configuration + Valencies of transition metals (1 Viewer)

[Carl5]

The electron configuration is confusing when it comes to elements with a large number of electrons. In class, we only ever practiced on the first few elements, but I'd like to move onto the more difficult configurations.

Also... the valencies of transition metals... how do I work them out?

Please and thank you ahah...

 

[MetroMattums]

Generally, transition metals have a valency of 2+. Don't assume it's true for all metals though, because if they give you something like copper (IV) chloride then the copper has a valency of 4+.

In terms of electron configurations, all you have to know are the first 20 elements. After that they don't stay in the same 2, 8, 8, 2 configuration as one of those rings (I'm not sure which) can actually hold more than 8 electrons. So don't worry about it.

 

[Carl5]

Generally, transition metals have a valency of 2+. Don't assume it's true for all metals though, because if they give you something like copper (IV) chloride then the copper has a valency of 4+.

In terms of electron configurations, all you have to know are the first 20 elements. After that they don't stay in the same 2, 8, 8, 2 configuration as one of those rings (I'm not sure which) can actually hold more than 8 electrons. So don't worry about it.

Alright!

Thank you very much !

 

[DNETTZ]

The electron configuration is confusing when it comes to elements with a large number of electrons. In class, we only ever practiced on the first few elements, but I'd like to move onto the more difficult configurations.

Also... the valencies of transition metals... how do I work them out?

Please and thank you ahah...

Most are completly random but tend to be 2/3/4 as stated above. (given by later chemistry - just learn a few values)

They should tell you their valency in Roman numerals for tests, as they are NOT part of the prelim course.

 

[MetroMattums]

Alright!

Thank you very much !

By the way, if you do want to learn the electron configurations for larger elements, look up Pauli's Exclusion Principle.