Home > Term: radium
radium
A radioactive metallic element; one of the alkaline-earth metals. Symbol, Ra. It occurs in pitchblende ore, in carnotite sands, and in all uranium minerals.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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