Radium

Kellee Cannon

Radium

Discovered in 1898 in Paris by Marie Curie                                                                         Symbol: Ra                                                                                            Atomic #: 88                                                     Atomic Mass: (226)                                                   Melting Point:700.0                                                               Boiling Point: 1737.0                                         # Protons/Electrons: 88                                  # Neutrons: 138                                                        Classification: Alkaline Earth