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The correct electronic configuration of chloride ion is
- a)2, 8
- b)2, 8, 4
- c)2, 8, 8
- d)2, 8, 7
Correct answer is option 'C'. Can you explain this answer?
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The correct electronic configuration of chloride ion isa)2, 8b)2, 8, ...
Element chlorine has atomic number 17 and its electronic configuration is 2, 8, 7. On gaining one electron it forms chloride ions whose electronic configuration is 2, 8, 8.
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The correct electronic configuration of chloride ion isa)2, 8b)2, 8, ...
The correct electronic configuration of chloride ion is 2, 8, 8.
Explanation:
- Chloride ion (Cl-) is formed when a chlorine atom gains one electron to achieve a stable electron configuration.
- The atomic number of chlorine is 17, which means it has 17 electrons in its neutral state.
- To determine the electronic configuration of chloride ion, we need to add one electron to the neutral chlorine atom.
- The electron configuration of a neutral chlorine atom is 2, 8, 7. This means that it has 2 electrons in the first energy level, 8 electrons in the second energy level, and 7 electrons in the third energy level.
- When chlorine gains one electron to form the chloride ion, the added electron occupies the outermost energy level (third energy level), resulting in a total of 8 electrons in that level.
- Therefore, the electronic configuration of the chloride ion is 2, 8, 8.
- This configuration satisfies the octet rule, which states that atoms tend to gain, lose, or share electrons in order to achieve a stable configuration with 8 electrons in the outermost energy level (except for the first energy level, which is stable with 2 electrons).
- The chloride ion now has a stable electronic configuration similar to that of the noble gas argon (2, 8, 8), which is located in the same period as chlorine in the periodic table.
- The ionic charge of the chloride ion is -1, indicating that it has gained one electron.
- The extra electron in the chloride ion creates a negative charge, balancing the positive charge of the remaining 17 protons in the nucleus.
Explanation:
- Chloride ion (Cl-) is formed when a chlorine atom gains one electron to achieve a stable electron configuration.
- The atomic number of chlorine is 17, which means it has 17 electrons in its neutral state.
- To determine the electronic configuration of chloride ion, we need to add one electron to the neutral chlorine atom.
- The electron configuration of a neutral chlorine atom is 2, 8, 7. This means that it has 2 electrons in the first energy level, 8 electrons in the second energy level, and 7 electrons in the third energy level.
- When chlorine gains one electron to form the chloride ion, the added electron occupies the outermost energy level (third energy level), resulting in a total of 8 electrons in that level.
- Therefore, the electronic configuration of the chloride ion is 2, 8, 8.
- This configuration satisfies the octet rule, which states that atoms tend to gain, lose, or share electrons in order to achieve a stable configuration with 8 electrons in the outermost energy level (except for the first energy level, which is stable with 2 electrons).
- The chloride ion now has a stable electronic configuration similar to that of the noble gas argon (2, 8, 8), which is located in the same period as chlorine in the periodic table.
- The ionic charge of the chloride ion is -1, indicating that it has gained one electron.
- The extra electron in the chloride ion creates a negative charge, balancing the positive charge of the remaining 17 protons in the nucleus.
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The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer?
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The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer?.
The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The correct electronic configuration of chloride ion isa)2, 8b)2, 8, 4c)2, 8, 8d)2, 8, 7Correct answer is option 'C'. Can you explain this answer?.
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