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The d-And-f-Block Elements
What is the trend of ionisation enthalpies of actinoids?
The ionization enthalpies of the actinoids are lower than that of the lanthanoids especially in case of early metals due to the more effective shielding of 5f electrons than 4f electrons. But as the outer electrons are less firmly held they are available for bonding.
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How would you account for the irregular variation of ionisation enthalpies (first and second) in the first series of the transition elements?
The outer electronic configuration of copper is 3d10 4s1, yet it is considered transition element. Why?
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