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What causes actinoids?
Cause of the Actinide Contraction In the Actinide contraction, the 5f electrons fail to shield both the outer shell electrons and other 5f electrons from the effective nuclear charge, making the size of the atom smaller as the atomic number increases from left to right.
Cause of the Actinide Contraction In the Actinide contraction, the 5f electrons fail to shield both the outer shell electrons and other 5f electrons from the effective nuclear charge, making the size of the atom smaller as the atomic number increases from left to right.