Stronthium

=Grant's Wiki= = Symbol: Sr = = Atomic Number: 38 = = Atomic Mass: 87.62 = = # of Protons: 38 = = # of Neutrons: 50 = = # of Electons: 38 = = Melting Point: 769 degrees = = Boiling Point: 1384 degrees = = Normal Phase: solid = = Cost for 100 g: $100 = = Classification: metal = = Family: alkaline earth metal = = Origin of Name: from Strontian, the Scottish town where it was discovered = = Discovered by: A. Crawford in 1790 = = Interesting Info: = = 1. discovered in a Scottish mine = = 2. does not occur naturally = = 3. very soft = = 4. scratches easily = = 5. used in toothpastes and fireworks = = 6. spontaneously combusts when exposed to air =