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radium

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alkaline earth

alkaline earth  

Any element of Group IIA of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).
atmospheric electricity

atmospheric electricity  

Electrical phenomena that occur in the atmosphere, excluding the phenomena involved in the ionosphere. Even under normal conditions (i.e. in the absence of thunderstorm activity) the upper atmosphere ...
Marie Curie

Marie Curie  

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Overview Page
(1867–1934)Polish-born French chemist. She was the first woman to win a Nobel Prize and the first person to win two Nobel Prizes. She shared the 1903 prize with her husband, the physicist Pierre ...
radium

radium   Quick reference

World Encyclopedia

Reference type:
Subject Reference
Current Version:
2004
Subject:
Encyclopedias
Length:
79 words

White, radioactive, metallic element of the alkaline-earth metals, first discovered (1898) in pitchblende by French physicists Pierre

radon

radon  

A radioactive inert gas, atomic number 86, the decay product of radium. The most stable isotope, radon-222, has a half-life of 3.825 days. Relatively high concentrations of radon may occur in mines ...
terminology

terminology  

Reference type:
Overview Page
Subject:
Linguistics
T[erminology] S[cience] (often abbreviated to “terminology”) is an interdisciplinary study of the principles and theoretical bases of concepts, concept systems, and the designations of concepts in ...
women in science

women in science  

Reference type:
Overview Page
Women have been and remain underrepresented in science. During the Scientific Revolution of the seventeenth century aristocratic women were active as both patrons and interlocutors of natural ...

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