d and f BLOCK ELEMENTS

Compared to lanthanoids, the magnetic susceptibility values for corresponding actinoids are generally:

• Higher
• Identical
• Lower
• Variable and unpredictable

How does the variation in magnetic susceptibility with unpaired f-electrons in actinoids compare to lanthanoids?

• Exactly identical
• Roughly parallel but with higher values for actinoids
• Roughly parallel but with lower values for actinoids
• Completely opposite

Compared to lanthanoids, how are the magnetic properties of actinoids described?

• Identical
• Simpler
• More complex
• Non-existent

What is the effect of alkalies on actinoid metals?

• They react vigorously.
• They dissolve completely.
• They form complex ions.
• No action

How do most actinoid metals react with nitric acid?

• They dissolve rapidly.
• They are completely unaffected.
• Most are slightly affected due to protective oxide layers.
• They react violently and explosively.