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QuestionChemistry

What is the charge of a fluorine (F) ion? A. - 7 B. - 1 C. + 1 D. + 7
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Answer

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Step 1:
I'll solve this step by step:

Step 2:
: Understand the Periodic Table Position

- Fluorine (F) is located in Group 17 (the halogen group) on the periodic table - Its atomic number is 9 - Fluorine has 7 valence electrons in its outer shell

Step 3:
: Determine Electron Configuration

- Fluorine's electron configuration is $$1s^{2} 2s^{2} 2p^{5}
- It needs 1 more electron to complete its outer shell and achieve a stable noble gas configuration

Step 4:
: Predict Ion Formation

- Fluorine tends to gain 1 electron to achieve a stable octet (8 electrons in its outer shell) - When it gains 1 electron, it becomes a negatively charged ion - The charge will be - 1

Step 5:
: Verify the Charge

- Net charge: $$9 - 10 = -1
- Number of protons remains 9 - Number of electrons becomes 10

Final Answer

The fluorine ion has a charge of - 1, forming the fluoride ion (F⁻).