Start your research here at DuckGo
Then try World Book Student:
World Book Student is the best place to continue your element research. It saves you time, there is a lot of information, and it is easy to copy/paste the MLA citation.
Interactive Periodic Table of Elements (Fisher Scientific)
Click on each element, then on the drop down arrow next to the element in the list.
Element Articles (Royal Society of Chemistry)
Click on the different elements to see articles on the listed elements.
Click on the element on the periodic table for more information.
Click on the element on the periodic table for more information.