The series always includes the 14 elements with atomic numbers 58 through 71, which are (in order of increasing atomic number) cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.
Our non-paper poster material is waterproof and tear-resistant. It is meant to last a lifetime and can even be used outside. This option does not come with frame. Custom orders accepted.