Periodic table

The periodic table is a very much needed tool in chemistry. It organizes the elements along with their properties. The table originally started with French scientist, Antoine Lavoisier. He had created a list of elements to keep organized and it basically grew from there. In today's periodic table there are 116 elements. Each element has its own box containing elements name, symbol, atomic number, and atomic mass. Boxes are arranged in order of increasing atomic number into columns called periods. There are three classifications for the elements, metals, metalloids, and non metals. Metals are shiny, solid at room temperature, and good conductors.  Non metals are usually gasses or brittle or dull looking solids. They aren't good conductors. Metalloids have both chemical and physical properties of both non metals and metals. All in all the periodic table is very useful in science.