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Discovered using flame spectroscopy
It is a silvery white metal
The scarcity of helium on earth is simply due to the fact that it is so light that it floats out of the lower atmosphere
Uranium CubeA real piece of autunite with a natural green glow when illuminated by UV light
Tantalum Element Cube SR-71 Titanium Discovered using flame spectroscopyTantalum's atomic number is 73 and its symbol is Ta. Tantalum is named after the Greek mythology villain Tantalus. It is a very lustrous bluish grey transition metal that is considered a technology critical element. Its use in electronics is to make tantalum capacitors. If you have looked at the guts of electronics, they are the parts that look like flat match heads. Tantalum compounds are also used in body implants and coatings because it is highly
