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(n – 1)d10 ns2 is the general electronic configuration of
- a)Fe, Co, Ni
- b)Cu, Ag, Au
- c)Zn, Cd, Hg
- d)Se, Y, La
Correct answer is option 'C'. Can you explain this answer?
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(n – 1)d10 ns2 is the general electronic configuration ofa)Fe, Co, Ni...
Electronic configuration explanation:
- The general electronic configuration n – 1d10 ns2 represents elements in the d-block of the periodic table.
- In this configuration, the (n – 1)d orbital is fully filled with 10 electrons, and the outermost ns orbital has 2 electrons.
Identifying the elements:
- Option C includes Zn, Cd, and Hg, which belong to the d-block elements.
- Zinc (Zn) has an electronic configuration of [Ar] 3d10 4s2.
- Cadmium (Cd) has an electronic configuration of [Kr] 4d10 5s2.
- Mercury (Hg) has an electronic configuration of [Xe] 4f14 5d10 6s2.
Verification of the electronic configuration:
- Zn: [Ar] 3d10 4s2 -> (4 – 1)d10 5s2 (matches the general configuration)
- Cd: [Kr] 4d10 5s2 -> (5 – 1)d10 6s2 (matches the general configuration)
- Hg: [Xe] 4f14 5d10 6s2 -> (6 – 1)d10 7s2 (does not match the general configuration)
Conclusion:
- Based on the verification of electronic configurations, the elements Zn and Cd match the general configuration n – 1d10 ns2, while Hg does not.
- Therefore, the correct answer is option C, which includes Zn, Cd, and excludes Hg.
- The general electronic configuration n – 1d10 ns2 represents elements in the d-block of the periodic table.
- In this configuration, the (n – 1)d orbital is fully filled with 10 electrons, and the outermost ns orbital has 2 electrons.
Identifying the elements:
- Option C includes Zn, Cd, and Hg, which belong to the d-block elements.
- Zinc (Zn) has an electronic configuration of [Ar] 3d10 4s2.
- Cadmium (Cd) has an electronic configuration of [Kr] 4d10 5s2.
- Mercury (Hg) has an electronic configuration of [Xe] 4f14 5d10 6s2.
Verification of the electronic configuration:
- Zn: [Ar] 3d10 4s2 -> (4 – 1)d10 5s2 (matches the general configuration)
- Cd: [Kr] 4d10 5s2 -> (5 – 1)d10 6s2 (matches the general configuration)
- Hg: [Xe] 4f14 5d10 6s2 -> (6 – 1)d10 7s2 (does not match the general configuration)
Conclusion:
- Based on the verification of electronic configurations, the elements Zn and Cd match the general configuration n – 1d10 ns2, while Hg does not.
- Therefore, the correct answer is option C, which includes Zn, Cd, and excludes Hg.
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(n – 1)d10 ns2 is the general electronic configuration ofa)Fe, Co, Nib)Cu, Ag, Auc)Zn, Cd, Hgd)Se, Y, LaCorrect answer is option 'C'. Can you explain this answer?
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