Pa:DENSITY,_G/CM3:15.37####[TABLECONTEXT]:FORMULA:Pa####Pa:SYMMETRY:tetragonal####Pa:COLOR:silvery-gray####[TABLECONTEXT]:[TITLE]:Protactinium####Pa:PEARSON_SYMBOL:tI2
Protactinium is a silvery-gray element with tetragonal symmetry, with 15.37 g/cm3 density and a Pearson symbol of tl2.