Transition elements

Showing 1 to 10 of 10

Does anyone know why some chemist dont consider zinc to be a transition element? Its a question in my book yet its not in the book and ive been looking online yet not found out why? x

Posted: 01-05-11 15:43 by Lydia

This might help: Zinc is not considered to be a transition metal because it has a relatively low melting and boiling point; in general transition metals have HIGH melting and boiling points, melting at 420 °C, and boiling at 900 °C, and zinc has the lowest melting point of all the transition metals aside from mercury and cadmium. 

Posted: 01-05-11 15:53 by Chemzoik

It is because Zinc has a relatively low melting and boiling point; in general transition metals have HIGH melting points and HIGH boiling point, melting at about 420°C and boiling at about 900°C, and has the lowest melting point of all the transition metal aside from mercury and cadmium.

So basically Zinc has a low melting and boiling point therefore is not considered a transition metal.

Posted: 01-05-11 15:55 by Sophie

thank you ! :D thats helped a lot :p **

Posted: 01-05-11 16:24 by Lydia

Your welcome **

Posted: 01-05-11 16:25 by Sophie

that's wrong.... transition elements are defined as being able to form one or more stable ions with partially filled d sub-shells. Zinc has a full d sub-shell and when it forms ions (Zn+/Zn2+) it only loses the two electrons from the 4s sub shell and still has a full d sub-shell, meaning it is not a transition metal. Scandium is also not considered a transition element because it has 1 electron in its d sub-shell so when it loses this electron and the two electrons in the 4s sub-shell to form Sc3+ it has no electrons in the d sub-shell. (this is an answer I know and have written myself that I have not copied and pasted from yahoo answers)

Modified twice, last modified by Bex on Fri 6th May, 2011 @ 22:16

Posted: 06-05-11 22:09 by Bex

Yes, you are correct... but that process means zinc gets a lower melting a boiling point. In an exam the examiner doesnt want to know why it has a lower boiling and melting point... unless of course the question says "why does zinc have a lower melting and boiling point?" (i doubt very much it will ask that though.)

Well done for knowing that Bex :)

Posted: 07-05-11 09:19 by Sophie

Sorry, I didnt realise this is gcse chem. I'm doing A2 so the answer I gave is what I have to know. My bad!! X

Posted: 07-05-11 12:14 by Bex

oh... im dreading having to learn that then in the future :/

Posted: 07-05-11 12:36 by Sophie