QQuestionChemistry
QuestionChemistry
How many valence electrons are in an fluorine atom and an fluoride ion?
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Answer
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Step 1:I'll solve this problem step by step, following the specified LaTeX formatting guidelines:
Step 2:: Determine the atomic number of fluorine
- Electronic configuration is $$1s^{2} 2s^{2} 2p^{5}
- Fluorine is located in Group 17 (VIIA) of the periodic table - Its atomic number is 7
Step 3:: Calculate valence electrons for neutral fluorine atom
- Total valence electrons = $$2 + 5 = 7$$ electrons
- Valence electrons are in the outermost shell
Step 4:: Calculate valence electrons for fluoride ion (F⁻)
- Total valence electrons = $$2 + 6 = 8$$ electrons
- Fluoride ion gains one electron
Final Answer
- Neutral fluorine atom: 7 valence electrons - Fluoride ion (F⁻): 8 valence electrons
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