MU 7A contains Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At) some of the treasures that should be.Note is the.1. every element is a Nonmetal. Melting point and boiling point of origin.2. every element has a Valence electron is equal to 7, with lekoksidechan equal to-1.3. is capable of oxidizing it well.4. the reaction with a metal shoe, easy.5. elemental ions. When the melt water is a colorless solution.6. the compounds of this element caused by metal. When water dissolved water will have a neutral solution.
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