Selenium

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Selenium
78.96



  Se
34
[Ar] 4s2 3d10 4p4
[ ? ] Non-Metal:

Selenium is a chemical element, having the chemical symbol Se. Its atomic number (the number of protons) is 34. It has a Standard Atomic Weight of 78.96, and is typically found as a solid in its elemental form.


Selenium is considered to be a member of the "Non-Metal" family of elements, and has a boiling point of 685°C.

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