La Mesa Periodica 20 in x 30 in (Spanish Edition)

This is the new Periodic table made by Albert Einstein,that helps you to learn and do chemistry better, because, the numbers of the atomic elements are in order,not all mixed up,as in other periodic tables. It also shows metric atomic weights, & more electron bonding & user information. If you do not find this table easier to use,you can return it for a full refund.