Answer :
Final answer:
Potassium forms a 1+ ion, sulfur forms a 2- ion, aluminum forms a 3+ ion, and nitrogen forms a 3- ion when they form ionic compounds. These charges reflect their tendency to lose or gain electrons. Understanding these charges is key to predicting the behavior of these elements in chemical reactions.
Explanation:
Predicting the Charges of Ions
To determine the charge of the ions formed by various elements, we need to look at their positions in the periodic table.
- Potassium (K) - Potassium is an alkali metal located in group 1 of the periodic table. It tends to lose one electron to achieve a stable electron configuration. Therefore, the charge of the potassium ion is 1+.
- Sulfur (S) - Sulfur is a non-metal found in group 16. It typically gains two electrons to fill its outer shell. Hence, the charge of the sulfide ion is 2-.
- Aluminum (Al) - Aluminum is located in group 13. It commonly loses three electrons, resulting in a charge of 3+ for the aluminum ion.
- Nitrogen (N) - Nitrogen is in group 15 of the periodic table. It usually gains three electrons to achieve a full outer shell, resulting in a charge of 3- for the nitride ion.
This information is essential for understanding how these elements will interact in ionic compounds.
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