hi my teacher asked us to find out the properties of transition metals and gave us this site but im not very good with the internet and i dont now how to find what i want on this site PLEASE HELP me i need to now so i can complete my course work. where can i find what i need on this site \

Try this link: www.webelements.com

Click on the transition elements you want to know the properties of, and a page will open up with all the information you need - boiling points, melting points, compounds, oxidation states etc. etc.

And be patient on here - there are no staff here to answer you 24/7!

Variable charged metals are those metals that can vary their 'charge' (Oxidation State), depending on the environment they are in.
As you correctly stated, the transition metals generally have different oxidation states when with different elements.

If you look on the main website, under 'compunds of' or 'oxidation numbers of' for each element, you should get a good guide of the range of oxidation states (charges) available to them. They are in roman numerals after the name of the metal.

You should find a peak in number with Mn.

Also, you could just google for 'transition metal oxidation states', there should be plenty of sites.

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i'm doing chemistry exe andi got a q i didntknow hw to answer.anyone can help me?
the Question is
Use hydrogen sulphide gas to differentiate between two types of iron ions. Describe the observations and write downthe chemical equations.