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Question
With reference to structural variability and chemical reactivity, write the differences between lanthanoids and actinoids
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Solution
| Lanthanoids | Actinoids |
| Their magnetic properties can be explained easily. | Their magnetic properties cannot be explained easily, as they are more complex. |
| Except promethium, they are non-radioactive | They are radioactive |
| Besides +3 oxidation state, they show +2 and +4 oxidation states only in few cases. | Besides +3 oxidation state, they show higher oxidation states of +4, +5, +6, +7 also. |
| Lanthanoid compounds are less basic | Actinoid compounds are more basic. |
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RELATED QUESTIONS
Compare the chemistry of the actinoids with that of lanthanoids with reference to chemical reactivity.
Write one similarity and one difference between the chemistry of lanthanoid and actinoid elements.
What is the position of actinoids in periodic table ?
How do you prepare:
Actinoid elements show wide range of oxidation states.
The highest oxidation state in plutonium (At. no. = 94) is ______.
Which of the following properties is NOT of actinoids?
The inner transition metals of 5f series are known as ____________.
Maximum oxidation state exhibited by Chlorine is ______.
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
Assertion: Actinoids form relatively less stable complexes as compared to lanthanoids.
Reason: Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.
