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The reason for greater range of oxidation states in actinoids is attributed to
- a)actinoid contraction
- b)5f,6d and 7s levels having comparable energies
- c)4f and 5d levels being close in energies
- d)the radioactive nature of actinoids.
Correct answer is option 'B'. Can you explain this answer?
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The reason for greater range of oxidation states in actinoids is attr...
Explanation:
The greater range of oxidation states in actinoids is attributed to the comparable energies of the 5f, 6d, and 7s levels.
Actinoid Contraction:
Actinoid contraction refers to the decrease in atomic and ionic radii as one moves across the actinoid series. This contraction occurs due to poor shielding of the nuclear charge by the 4f electrons. However, actinoid contraction does not directly contribute to the greater range of oxidation states in actinoids.
Close Energies of 4f and 5d Levels:
The 4f and 5d electron orbitals in actinoids are close in energy, which allows for the greater range of oxidation states. The comparable energies of these orbitals make it easier for the actinoids to lose or gain electrons in different oxidation states. This flexibility in electron configuration leads to a wider range of oxidation states compared to the lanthanoids, where the 4f and 5d levels are more separated in energy.
Radioactive Nature:
The radioactive nature of actinoids does not directly contribute to the greater range of oxidation states. However, the unstable nuclei of actinoids and their tendency to undergo radioactive decay can influence their chemical behavior.
Summary:
The greater range of oxidation states in actinoids is primarily attributed to the comparable energies of the 5f, 6d, and 7s levels. This allows for more flexibility in electron configuration and makes it easier for actinoids to exhibit a wider range of oxidation states. The actinoid contraction and radioactive nature of actinoids are not directly responsible for this greater range.
The greater range of oxidation states in actinoids is attributed to the comparable energies of the 5f, 6d, and 7s levels.
Actinoid Contraction:
Actinoid contraction refers to the decrease in atomic and ionic radii as one moves across the actinoid series. This contraction occurs due to poor shielding of the nuclear charge by the 4f electrons. However, actinoid contraction does not directly contribute to the greater range of oxidation states in actinoids.
Close Energies of 4f and 5d Levels:
The 4f and 5d electron orbitals in actinoids are close in energy, which allows for the greater range of oxidation states. The comparable energies of these orbitals make it easier for the actinoids to lose or gain electrons in different oxidation states. This flexibility in electron configuration leads to a wider range of oxidation states compared to the lanthanoids, where the 4f and 5d levels are more separated in energy.
Radioactive Nature:
The radioactive nature of actinoids does not directly contribute to the greater range of oxidation states. However, the unstable nuclei of actinoids and their tendency to undergo radioactive decay can influence their chemical behavior.
Summary:
The greater range of oxidation states in actinoids is primarily attributed to the comparable energies of the 5f, 6d, and 7s levels. This allows for more flexibility in electron configuration and makes it easier for actinoids to exhibit a wider range of oxidation states. The actinoid contraction and radioactive nature of actinoids are not directly responsible for this greater range.
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The reason for greater range of oxidation states in actinoids is attr...
Actinoids have a greater range of oxidation states due to comparable energies of 5f,6d and 7s orbitals. Hence, all their electrons can take part in bond formation.
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The reason for greater range of oxidation states in actinoids is attributed toa)actinoid contractionb)5f,6d and 7s levels having comparable energiesc)4f and 5d levels being close in energiesd)the radioactive nature of actinoids.Correct answer is option 'B'. Can you explain this answer?
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