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The pair of ions that have same electronic configuration
- a)Fe2+ and Mn2+
- b)Fe2+ and Co3+
- c)Fe3+ and Co3+
- d)V2+ and Cr3+
Correct answer is option 'B,D'. Can you explain this answer?
Most Upvoted Answer
The pair of ions that have same electronic configurationa)Fe2+ and Mn2...
You simply count the electron number, though , co is present just after fe, so from this logic you count the electron number is same in fe2+ and co3+,(just think) simultaneously v2+, cr3+ electron number is same, in mathematical, fe 2+ electron number is 26-2=24,, and co 3+,electron number is 27-3=24,so simultaneously v2+, and cr 3+ has same number of electron,
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The pair of ions that have same electronic configurationa)Fe2+ and Mn2...
Explanation:
Electronic Configuration of Fe2+:
Fe2+ has the electron configuration [Ar] 3d6. It loses two electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Mn2+:
Mn2+ has the electron configuration [Ar] 3d5. It loses two electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Fe3+:
Fe3+ has the electron configuration [Ar] 3d5. It loses three electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Co3+:
Co3+ has the electron configuration [Ar] 3d6. It loses three electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of V2+:
V2+ has the electron configuration [Ar] 3d3. It loses two electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Cr3+:
Cr3+ has the electron configuration [Ar] 3d3. It loses three electrons from its 3d orbital to achieve a stable configuration.
Explanation of the correct options:
Option B (Fe2+ and Co3+):
Both Fe2+ and Co3+ have the same electron configuration of [Ar] 3d6. They both lose electrons from their 3d orbital, but the number of lost electrons is different. Fe2+ loses 2 electrons, while Co3+ loses 3 electrons. Therefore, they have the same electronic configuration.
Option D (V2+ and Cr3+):
Both V2+ and Cr3+ have the same electron configuration of [Ar] 3d3. They both lose electrons from their 3d orbital, but the number of lost electrons is different. V2+ loses 2 electrons, while Cr3+ loses 3 electrons. Therefore, they have the same electronic configuration.
Conclusion:
The pair of ions that have the same electronic configuration are Fe2+ and Co3+ (option B) and V2+ and Cr3+ (option D). These ions have the same electron configuration but differ in the number of electrons lost.
Electronic Configuration of Fe2+:
Fe2+ has the electron configuration [Ar] 3d6. It loses two electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Mn2+:
Mn2+ has the electron configuration [Ar] 3d5. It loses two electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Fe3+:
Fe3+ has the electron configuration [Ar] 3d5. It loses three electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Co3+:
Co3+ has the electron configuration [Ar] 3d6. It loses three electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of V2+:
V2+ has the electron configuration [Ar] 3d3. It loses two electrons from its 3d orbital to achieve a stable configuration.
Electronic Configuration of Cr3+:
Cr3+ has the electron configuration [Ar] 3d3. It loses three electrons from its 3d orbital to achieve a stable configuration.
Explanation of the correct options:
Option B (Fe2+ and Co3+):
Both Fe2+ and Co3+ have the same electron configuration of [Ar] 3d6. They both lose electrons from their 3d orbital, but the number of lost electrons is different. Fe2+ loses 2 electrons, while Co3+ loses 3 electrons. Therefore, they have the same electronic configuration.
Option D (V2+ and Cr3+):
Both V2+ and Cr3+ have the same electron configuration of [Ar] 3d3. They both lose electrons from their 3d orbital, but the number of lost electrons is different. V2+ loses 2 electrons, while Cr3+ loses 3 electrons. Therefore, they have the same electronic configuration.
Conclusion:
The pair of ions that have the same electronic configuration are Fe2+ and Co3+ (option B) and V2+ and Cr3+ (option D). These ions have the same electron configuration but differ in the number of electrons lost.
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The pair of ions that have same electronic configurationa)Fe2+ and Mn2+b)Fe2+ and Co3+c)Fe3+ and Co3+d)V2+ and Cr3+Correct answer is option 'B,D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The pair of ions that have same electronic configurationa)Fe2+ and Mn2+b)Fe2+ and Co3+c)Fe3+ and Co3+d)V2+ and Cr3+Correct answer is option 'B,D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pair of ions that have same electronic configurationa)Fe2+ and Mn2+b)Fe2+ and Co3+c)Fe3+ and Co3+d)V2+ and Cr3+Correct answer is option 'B,D'. Can you explain this answer?.
The pair of ions that have same electronic configurationa)Fe2+ and Mn2+b)Fe2+ and Co3+c)Fe3+ and Co3+d)V2+ and Cr3+Correct answer is option 'B,D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The pair of ions that have same electronic configurationa)Fe2+ and Mn2+b)Fe2+ and Co3+c)Fe3+ and Co3+d)V2+ and Cr3+Correct answer is option 'B,D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pair of ions that have same electronic configurationa)Fe2+ and Mn2+b)Fe2+ and Co3+c)Fe3+ and Co3+d)V2+ and Cr3+Correct answer is option 'B,D'. Can you explain this answer?.
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