Halogen
The halogens are a chemical series. They are the elements in Group 17 (old-style: VII or VIIA) of the Periodic Table: fluorine, chlorine, bromine, iodine, and astatine. The word comes from Greek roots meaning "salt" and "creator".These elements are diatomic molecules in their natural form. They require one more electron to fill their outer electron shells, and so have a tendency to form a singly-charged negative ion. This negative ion is referred to as a halide ion; salts containing these ions are known as halides.
Many synthetic organic compounds, and a few natural ones, contain halogen atoms; these are known as halogenated compounds.
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Francisco I cut out all the pictures of pretty girls from three
college, highbrow, low-brow; highway-women, burglaresses, forgeresses
fifty-four - and all beautiful. When I received my paper in the morning
- I used to look first at the pictures of the women. Then always I
yesterday and, if it were Saturday morning (I confess it without shame),
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it the late lamented Beachey flying with a pretty girl around the
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of pretty girls and often it demanded the services of the mayor.html">mayor. I shall
Mayor Rolph's activities. For being mayor of San Francisco is no
pretty girls - well, if I were a man it would be my ambition to be mayor
made of that task, as they make of every task, a game and a play and a
most discouraging conditions that an exposition ever.
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