Concept explainers
(a)
Interpretation:
The chemical formula of paraperiodic acid and the oxidation state of iodine in it should be determined.
Concept introduction:
The group 7A elements show variation from non-metals to metals down in the group. The first element of the group 7A is fluorine with 7 valence electrons. These elements form halide with metals and exist in X-1 ions.
(b)
Interpretation:
The chemical formula of chlorous acid and the oxidation state of chlorine in it should be determined.
Concept introduction:
The group 7A elements show variation from non-metals to metals down in the group. The first element of the group 7A is fluorine with 7 valence electrons. These elements form halide with metals and exist in X-1 ions.
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CHEMISTRY-W/MASTERING CHEMISTRY ACCESS
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