Flame-retardant fabrics often have ________ atoms incorporated into the fabric's fibers.

Question

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Flame-retardant fabrics often have bromine (Br) or chlorine (Cl) atoms incorporated into the fabric's fibers. This is because these elements have a high flame retardancy and are able to reduce the flammability of the fabric. While oxygen (O) is another element commonly associated with flame retardancy, it is not typically incorporated into the fabric's fibers but rather applied as a surface treatment. Chromium (Cr) and fluorine (F) are not commonly used in flame-retardant fabrics.

Flame-Retardant Fabrics Often Have ________ Atoms Incorporated into the Fabric's