Three hydrogen atoms are replaced by three atoms of this element in an acetic acid derivative to increase its Ka (“K-a”) by 34,000 times. (10[1])A (10[1])uranium compound with six atoms of this element (10[1])is a (10[1])byproduct (10[1])of enrichment. A polymer in which each carbon is bonded to two atoms of this element is used to coat stir bars and non-stick pans. This element (10[1])and hydrogen (10[1])form (10[2])a binary acid that can etch glass. Carbon, chlorine, and this element name a class of volatile compounds that includes refrigerants like Freon. This element has a value close to 4 on the Pauling scale, (10[1])as it is the most electronegative (10[1])element. (10[1])For 10 points, name this lightest halogen commonly added to toothpaste. ■END■