GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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8
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6
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2
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1
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Detailed explanation-1: -Hence the number of the valence electron in oxygen is 6 electrons.
Detailed explanation-2: -From the electronic configuration of the oxygen atom, we come to know that the number of electrons present in the outermost shell i.e., 2rd shell is 6 electrons. Thus, the total number of valence electrons present in an oxygen atom is six.
Detailed explanation-3: -Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.
Detailed explanation-4: -So, electronic configuration of oxygen is 2, 6. It takes or accepts 2 electrons to achieve 8 electrons in its outermost shell to complete the octet and become stable. Hence the valency of oxygen is 2.
Detailed explanation-5: -Valence electron of oxygen is 6 and each oxygen atom will share 4 valence electrons to make a double bond with another oxygen atom. Valence electron of oxygen is 6 and each oxygen atom will share 2 valence electrons to make a bond.