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Geography Categories
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| Definition Of: |
Actinium (Ac)
Atomic Mass : 227 Atomic Number : 89 Name Origins : From the Greek, aktinos = "ray." Year Discovered : 1899 Discovery Credits : Discovered by A. Debierne at Paris, France. More Details
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Mineralogy Dictionary INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 3 4 A: Page 1 of 4.
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