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# Who discovered radium?
# Who discovered the element radium?
# The mystery of the lost radium
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# Radium Hat British Columbia
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# What is the missing symbol?
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رمز الراديوم (Info)
رَمْز الرَّاديُوم:- عنصر كيميائيّ مشع رمزه (Ra) عمره النصفيّ ( 1620) سنة، يستعمل في التصوير الشعاعيّ. (المعجم الموحد لمصطلحات علم الصيدلة)
