Halogens (atoms with 7 valence electrons) and Hydrogen
or generally, atoms with their shells almost full
PE =1/2mv^2
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Answer:
In analytical chemistry, the titrant is a solution of known concentration that is added (titrated) to another solution to determine the concentration of a second chemical species. The titrant may also be called the titrator, the reagent, or the standard solution.
hope it helps (^^)
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