But apart from military uses like this, plutonium also has one of the richest chemistries of any element. There are six different forms of plutonium, known as allotropes, that all exist at different ...

Plutonium is a radioactive chemical element, with the symbol Pu and atomic number 94. It is a heavy, silvery metal that ...

The periodic table is a well-organized chart that contains all the known elements in the universe. These elements are ...