Which of the following elements has the same oxidation number in all its compounds? A) Oxygen B) Fluorine C) Beryllium D) Both (B) & (C)
Answer: Fluorine
Explanation
The element that has the same oxidation number in all its compounds is Fluorine.
Fluorine is the most electronegative element, so it always has an oxidation number of -1 in all its compounds
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