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A chemical family whose members exist as reactive diatomic molecules in the gaseous phase is the?

A. actinide series
B. alkali metals
C. halogens
D. lanthanide senes

User Edxz
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C. Halogens
Think of HOFBrINCl
Bromine, Chlorine, Fluorine, and Iodine are all in the acronym and they are all hydrogens
User Ed Staub
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