The Periodic Table of Elements
The periodic table is a table of the chemical elements, showing the symbols for the elements, their full names, their atomic numbers and their mass number. It organizes them into groups and periods (columns and rows) based on their structure and properties. It is called "the periodic table" because the horizontal rows are named "periods."
Source: wikianswers
Source: wikianswers
Printables
Meet the Elements |
Internet Resources - Periodic Table of Elements
|