Can you fill in the names of all ten categories of elements just by going by the symbols of elements in those categories? Which elements belong to which categories? Use colored markers to outline the elements and their categories in the same color. Hide element names and symbols and challenge students to complete the table. Just open the file in a PDF reader supporting layers and begin customizing! Show all layers for a complete view including groups, periods, legends, colored outlines, corners (for black and white printing), as well as the usual atomic number, weight, symbol, and name. Letters in element box corners show categories so no information is lost with black and white printing.Colored outlines rather than filled blocks save ink.Fill-in worksheets for students to build their own periodic table.Handouts can provide only necessary information during test taking.Create quizzes by hiding names or categories.Hide unnecessary or grade-level inappropriate information.Ptable's new, up-to-date periodic table PDF and wide periodic table PDF are layered so you can choose exactly what you want to print, and are the perfect companion to the periodic table classroom poster. The number above each symbol is its atomic number. In the modern periodic table, each element is represented by its chemical symbol. Elements are arranged in the table by increasing atomic number. They can be typically located in salts, and also a entire body-centered cubic framework. These metals are most reactive when in contact withwater and air, or oil. Printable Periodic Table PDF - Ptable Printable Periodic Table PDF The modern periodic table is used to organize all the known elements. The brand alkali materials comes from the Arabic expression al-qali, significance ashes.