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Atomic mass? # of Protons and Neutrons and electrons? Period(row,series)? Family(group)? Metal or nonmetal or metalloid? solid, liquid, or a gas at room temperature? 4 common uses for europium? 2 unique properties or features of europium? 2 physical properties of europium? 2 chemical properties of europium? where is it found? common on earth? who discovered it? how was it discovered? when was it discovered? any other facts or source? PLEASE HELPPPP I CAN'T FIND ANYTHING! :(
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