what are the common oxidation states of elements in group 7a? separate each oxidation state with a comma.

what are the common oxidation states of elements in group 7a? separate each oxidation state with a comma.
Answer
Brief Explanations:
Elements in Group 7A (halogens) have 7 valence electrons. They can gain one electron to achieve a stable - 8 - electron configuration, resulting in an oxidation state of - 1. In some compounds, they can also have positive oxidation states such as + 1, + 3, + 5, and + 7 when they share electrons with more electronegative elements like oxygen.
Answer:
-1, +1, +3, +5, +7