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OpenStudy (anonymous):

Selenium has six valence electrons. What is the valence of selenium?

OpenStudy (rina.r):

WELCOME TO SO(: PLZ READ THE CODE OF CONDUCT http://openstudy.com/code-of-conduct Valence electron is the electron located in the outermost shell of an atom. Selenium have six valence electrons. Its chemical symbol is Se and has atomic number 34 in the periodic table. http://www.ask.com/question/how-many-valence-electrons-does-selenium-have

OpenStudy (anonymous):

Group valency :6 valency due to inert pair effect: 4

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