Periodic Table Jigsaw Puzzle

This Periodic Table of Elements puzzle is a must-have for chemistry geeks! Slightly embossed table design includes atomic number as well as colour-coded categories*. Abstract art background is "Black Gravity" courtesy of Deep Flux designs at Zazzle. (*Alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, halogens, the noble gases and other non-metals, plus the Actinide and Lanthanide series.)