Chemists are able to find new applications for elements and their compounds and create new materials. As we move across and down the table, we see a regular variation in many physical and chemical properties of the elements. Understanding why these patterns exist allows us to predict chemical behaviors and utilize them for our benefit. Explain the basis for these patterns. The Periodic Table of the Elements Good descriptions of major chemical categories such as transition metals, nonmetals, etc.
Every element has a story.
Sometimes how an element is discovered is interesting, like the alkali metals and the noble gases. Webelements One of the best sites for information. Chemical Comics top Mystery Periodic Table Construct a periodic table of the representative elements of the first four rows from the clues provided. See if you understand the patterns. The electrons of atom N are distributed over three energy levels The atomic radius of K is the largest of the group I would like to give credit for this activity to the proper author, but I do not know who he is.