The actinide contraction is the greater-than-expected decrease in atomic radii and ionic radii of the elements in the actinide series, from left to right. == Description == The actinide contraction is more pronounced than the lanthanide contraction since 5f electrons are less effective at shielding than 4f electrons.
The actinide contraction is the greater-than-expected decrease in atomic radii and ionic radii of the elements in the actinide series, from left to right. == Description == The actinide contraction is more pronounced than the lanthanide contraction since 5f electrons are less effective at shielding than 4f electrons.
Source: Wikipedia "Actinide contraction" · CC BY-SA 4.0
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