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Amelia Gonzalez——Studied at the University of Vienna, Lives in Vienna, Austria.
Fluorine (F) is the first element in the Halogen group (group 17) in the periodic table. Its atomic number is 9 and its atomic weight is 19, and it's a gas at room temperature. It is the most electronegative element, given that it is the top element in the Halogen Group, and therefore is very
reactive.Sep 29, 2016
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