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How many unpaired electrons are in a xenon atom?
Premodern World
The historical period before the emergence of modernity, often characterized by agrarian-based societies and pre-industrial economies.
Recreation
Activities done for enjoyment, leisure, or relaxation, often during one's free time.
Technology
Material artifacts and the knowledge and techniques required to use them.
Internet
A global network of computers that provides a wide range of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
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