QQuestionChemistry
QuestionChemistry
What is the charge on iodine (I) when it forms an ion?
A. 1 +
B. 1−
C. 2 +
D. 2−
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Answer
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Step 1I'll solve this step by step using the guidelines you specified:
Step 2: Determine the electron configuration of iodine
- Its electron configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{10} 4p^{6} 5s^{2} 4d^{10} 5p^{5}
- Iodine is a halogen located in Group 17 (VIIA) of the periodic table
Final Answer
Explanation: Iodine forms a 1^{-} ion by gaining one electron to achieve a stable noble gas electron configuration, which is characteristic of halogen elements in Group 17.
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