Thursday, 5 April 2012


Halogens are the only periodic group of elements that share all three familiar states of matter at the same given temperature and pressure.

Halogens are very reactive and harmful to biological organisms in sufficient quantities.

Fluorine is the most reactive element in existence, attacking otherwise inert materials such as glass and forming compounds with heavier noble gases, including Neon, Xenon, Radon, and Krypton (Noble Gases).

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