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mLine 15:
Line 15: − − Crystal Structure: Hexagonal − +
romoved repetative info
State of Matter at Room Temperature: Solid<ref>http://education.jlab.org/itselemental/ele034.html</ref>
State of Matter at Room Temperature: Solid<ref>http://education.jlab.org/itselemental/ele034.html</ref>
Color: gray<ref>http://www.chemicalelements.com/elements/se.html</ref>
Color: gray<ref>http://www.chemicalelements.com/elements/se.html</ref>
==Uses==
==Uses==
Selenium's electrical resistance is greatly affected by the amount of light shining on it. Bright light causes it to conduct better, while darkness reduces conductivity. This special property has made selenium useful in devices that respond to the intensity of light, such as electric eyes, photo cells, light meters for cameras and copiers. It is also is able to generate energy in direct sunlight. For this reason, it is a vital ingredient of solar cells. <ref>http://education.jlab.org/itselemental/ele034.html</ref>
Selenium's electrical resistance is greatly affected by the amount of light shining on it. Bright light causes it to conduct better, while darkness reduces conductivity. This special property has made selenium useful in devices that respond to the intensity of light, such as electric eyes, photo cells, light meters for cameras and copiers. It is also is able to generate energy in direct sunlight. For this reason, it is a vital ingredient of solar cells. <ref>http://education.jlab.org/itselemental/ele034.html</ref>