Question : Which element was arbitrarily assigned a value of 4.0 in the 'Halogens' section in 1922 by Linus Pauling, an American scientist?
Option 1: Fluorine
Option 2: lodine
Option 3: Astatine
Option 4: Bromine
Correct Answer: Fluorine
Solution : The correct option is Fluorine.
The element that was arbitrarily assigned a value of 4.0 in the 'Halogens' section by Linus Pauling in 1922 is Fluorine (F) . This assignment of this value to Fluorine was part of Linus Pauling's efforts to develop the concept of electronegativity, which is a measure of an atom's ability to attract electrons in a chemical bond.
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