This line separates elements that have been observed to be metalsįrom those that have been observed to be non-metals. Like a staircase, so the scientific community calls it the staircase. To the lower right hand corner of the table. There is also usually a bold zig-zag line running from just left of boron (#5) That there is a good chemical reason for this was named Glenn Seaborg,Īnd he now has an element named for him (#106, Seaborgium). Proportions, so we pull them down and out. One problem is that this would give the page unpleasant Numbered 1-7 so far) and 18 columns (also called groups, numberedġ-18), with two "orphaned" rows floating around the bottom of the page.Ĭlose examination of the sequence of atomic numbers will reveal that thoseīottom two rows could belong up in the body of the periodic table, sort of squeezed Most periodic tables are set up the same way: seven rows (also called periods, They are each interesting for different reasons. HereĪre the six best that I have found since I started looking. There is a periodic table on this site that I will mention and link to later.Īlso, there are many many many periodic table web-sites on the internet. It's prettyĬool, so check it out (and e-mail me if you are super good with programming,īecause there are still some features I would like to add). Maps of the elements' properties drawn on a rotatable periodic table. It shows the same data as the second one above, but the graphs are 3-D surface One was developed by a student named David Mack from an idea I had, and Spreadsheet with a whole bunch of data compiled about each element, and graphical On this site, I have three Excel 2000 files: theįirst one is just a bunch of periodic tables that I have formatted for various Since this pattern repeats, it is called "periodic."įirst of all, there are many really cool Periodic Table web sites on the internet. With a very high first ionization energy, followed by a soft metal with an extremely And every once in a while there will be an unreactive gas So if the elements are listed in order of increasingĪtomic number, there will be a pattern (or trend) to some property like first The whole basis for the word "periodic" in the name is the fact thatĮlements of different weights and appearances have similar patterns of reactivitiesĪnd physical properties.
CHEMLAB PC MARICOPA EDU PERIODIC PERIODIC HTML HOW TO
The purpose of this page is to presentĪ very short set of reminder-notes about the table and how to "navigate" Properties that are not explicitly noted can be remembered from chemistry conceptsĪnd an element's position on the table. This is a compact listing of many properties of the elements. Your best friend in any chemistry course will always be The Periodic Table Of