Assigning priority for chiral centers

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caloc

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So I know that you assign priority based on atomic number and if two or more of the atoms attached to the chiral center are the same, then you look at what's attached next. Priority is assigned at the first point of difference.


If one carbon attached to the chiral center has 2 bonds to hydrogen and one bond to fluorine and the other carbon attached to the chiral center is part of carboxylic acid (has 3 bonds to oxygen), do you still assign priority based on atomic number? Fluorine has a higher atomic number so shouldn't it have first priority?

Or because there's 3 oxygen bonds compared to 1 fluorine bond, the carboxyl carbon has first priority?

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