According to the rule, difference between the maximum positive and negative valence of an element is frequently eight. For example, sulfur in H2S has oxidation state ?2 and +6 in H2SO4. -2 + (+6) equals 8.
What is ABEGG'S RULE OF EIGHT?
ABEGG'S RULE OF EIGHT: "Abegg's rule of eight was defined by German chemist Abegg."
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