Answer :
Final answer:
The most common charges of monatomic ions for selenium, fluorine, iron, and nitrogen are -2, -1, +2 or +3, and -3 respectively.
Explanation:
The charges exhibited by the monatomic ions of selenium (Se), fluorine (F), iron (Fe), and nitrogen (N) are typically as follows:
- Selenium (Se): Selenium most commonly forms a -2 charge when it gains two electrons to achieve a stable electron configuration.
- Fluorine (F): Fluorine typically forms a -1 charge when it gains one electron to reach a stable electron configuration.
- Iron (Fe): Iron can form +2 or +3 charge depending on the situation. It commonly forms Fe2+ and Fe3+ ions.
- Nitrogen (N): Nitrogen typically forms a -3 charge when it gains three electrons to achieve a stable electron configuration.
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