Periodic Table of Elements Pen

A beautiful science gift or tool to help jog the memory during crucial time (such as a chemistry exam), this ball point pen conveniently scrolls a periodic table into the barrel of the pen. Periodic table identifies the following features per element: Atomic Number, Atomic Weight, Symbol, Melting Point, Boiling Point, Element Name, Group, Natural State of the Element. The back of the periodic table contains useful information such as: Atomic Mass Unit, Avogadro's Number, Electron Charge, Faraday's Constant, Gas Constant, Mass of an Electron, Proton, Neutron, Planck's constant, Pi, Speed of Light, Conversion Factors, Gas Laws, Boyle's Law, Charles Law, Gay-Lussac's Law, Avogadro's Law, Ideal Gas Law, Temperature Conversions, Molarity Calculations, Densities. The dimensions of the pen are 5.75", the dimensions of the periodic table are 7" x 2.5" The pen writes in black color ink.