NEETChemistryd and f Block Elements
What is the result of the 5f electrons being more effectively shielded from the nuclear charge in actinoids?
Options
- AThey become less reactive
- BThey become more reactive
- CThey are available for bonding
- DThey become unstable
Correct answer
C. They are available for bonding
Step-by-step solution
The 5f electrons are more effectively shielded from the nuclear charge than the 4f electrons of the corresponding lanthanoids. Because the outer electrons are less firmly held, they are available for bonding in the actinoids.