Question
Explain why chlorine, Bromine and Iodine have very similiar chemical properyies. Use electron arrangements and the position of these elements in the Periodic Table to illstrate your explanation.
Answer
<P><I>After reading your question, I decided that the best place to start was to look for Web sites with interactive Periodic Tables of Elements, because they will provide information on all three of these elements. <BR><BR>I went to Google (<A href=http://www.google.com" target=_BLANK>http://www.google.com</A> ), everyone's favorite search engine, and typed in the keyword "chemistry." <BR><BR>The first hit was a great site called WebElements (<A href=http://www.webelements.com" target=_BLANK>http://www.webelements.com</A>/ ). If you move your arrow over the different elements, you will be able to see their names--if you aren't sure where to find your three elements, this should help! <BR><BR>Once you locate chlorine, bromine, and iodine, click on them, and you will get a great page of information for each one. Notice the menu at the left, which has links to sections on electronic, physical, and nuclear properties, among other things. <BR><BR>Another helpful site is called EnvironmentalChemistry.com. I found it by searching Google with the keywords "bromine properties." The bromine page can be found here: <A href=http://environmentalchemistry.com/yogi/periodic/Br.html" target=_BLANK>http://environmentalchemistry.com/yogi/periodic/<BR>Br.html</A>. You will notice that there is a link to the main Periodic Table of Elements page at the top of the bromine page; if you click on this, you will be able to get to the other two elements' pages quickly. <BR><BR>Since you need to know about the electron arrangements for the elements, you will probably be interested in the electon diagrams on the EnviornmentalChemistry.com element pages. You'll also find lots of other helpful information. <BR><BR>If you still need some more information, you might want to try InfoPlease (<A href=http://www.infoplease.com" target=_BLANK>http://www.infoplease.com</A>/ ), a general reference source. If you type "bromine" (or the other element names ) in the search box at the top, InfoPlease will display links to various encyclopedia, almanac, and dictionary articles. The encyclopedia essays are particularly helpful. <BR><BR>Allison, I hope you find these sources useful as you complete your assignment. If you need further assistance, you might want to talk to your local librarian. You should also feel free to contact VRD again whenever you need help finding information! <BR><BR>Sarah <BR></I></P>
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