Top Ten Radioactive Elements

1 Plutonium Plutonium is a radioactive actinide metallic element with the atomic number of 94. It has a symbol of Pu. It belongs to actinide family.

2 Uranium

3 Oganesson

4 Radon

5 Technetium

6 Francium

7 Astatine

8 Polonium

9 Neptunium

10 Promethium