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What is the total number of outer (valence) electrons in sulfur dioxide, so2?

User Dharmx
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Sulfur has one more electron pair in its 3s subshell so it can undergo excitation one more time. Now sulfur has expanded the octet to 12. So in addition to being octet, sulfur has expanded the octet rule where it can possess 10 or 12 electrons in a valence shell
User NSNolan
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