QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
# The atomic number of fluorine is 9. How many electrons does an ion of fluorine have if it is represented by the symbol shown below?
19 \mathrm{~F}^{1 -}
A. 8 electrons
B. 9 electrons
C. 10 electrons
D. 20 electrons
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Answer
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Step 1Let's solve this step by step:
Step 2: Understand the atomic number
- The atomic number represents the number of protons in an atom's nucleus - For fluorine, the atomic number is 9, which means a neutral fluorine atom has 9 protons and 9 electrons
Final Answer
Explanation: When fluorine forms a ^{1 -} ion, it gains one electron, bringing its total electron count to 10 while maintaining 9 protons in its nucleus.
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