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vladimir2022 [97]
3 years ago
10

Although Group 7A ions may have different oxidation states depending on which other elements are in the compound, the most commo

n oxidation number for Group 7A (Group 17) ions is:
1−

3+

5+

7+
Chemistry
1 answer:
frutty [35]3 years ago
6 0
1-. Because Group 7A elements have 7 electrons in their valence shell, they need 1 more electron to complete the octet. Thus, it is generally true that all Group 7 electrons have an oxidation number of 1-. This also explains why electron affinity is largely the highest for Group 7A and lowest for Group 1A.
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