To determine which two elements would bond together based on their ionic charges, we first need to consider the common ionic charges of each element:
- Calcium (Ca) typically forms a +2 charge (Ca²⁺).
- Potassium (K) typically forms a +1 charge (K⁺).
- Iodine (I) typically forms a -1 charge (I⁻).
- Neon (Ne) is a noble gas and has a stable electron configuration, so it does not typically form ions.
Now, let's analyze the pairs:
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Calcium and potassium: Both are metals and can form positive ions, but they do not bond to each other since they both have positive charges.
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Potassium and iodine: Potassium can form K⁺ (positive charge) and iodine can form I⁻ (negative charge). These two can bond because opposite charges attract.
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Calcium and neon: Calcium can form Ca²⁺, but neon does not form ions, so they do not bond.
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Potassium and neon: Similar to the previous pair, potassium can form K⁺, but neon does not form ions, so they do not bond.
Based on the analysis, the pair that would bond together based on their ionic charges is potassium and iodine.
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