what is valence election??????
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The outermost electron shell of an atom is called valence shell. The electrons present in outermost shell of an atom are called asvalence electrons. The valence electron of an atom take part in a chemical reaction because they have more energy than all the innerelectrons.
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Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has sixvalence electrons, two in the 2s subshell and four in the 2p subshell.
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