QQuestionChemistry
QuestionChemistry
Iodine is in group 17 of the periodic table (sometimes referred to as group 7A). How many valence electrons does iodine have?
A. 5
B. 7
C. 1
D. 17
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Answer
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Step 1I'll solve this step by step using the specified LaTeX formatting guidelines:
Step 2: Understand Group Number and Valence Electrons
- Elements in the periodic table's groups have a predictable number of valence electrons - Group number corresponds to the number of valence electrons for main group elements (groups 1 - 2 and 13 - 18)
Final Answer
Explanation: Group 17 (7A) elements like iodine always have 7 valence electrons, which determines their chemical reactivity and bonding behavior.
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