What is Lanthanide Contraction?
Lanthanide contraction refers to the greater-than-expected decrease in atomic and ionic radii of the elements in the lanthanide series from left to right. It is caused by the poor shielding effect of the 4f electrons, which results in an increase in the effective nuclear charge attracting each electron, leading to successive reductions in atomic and ionic radii.
Lanthanide Contraction
Lanthanide Contraction is a phenomenon that describes the steady decrease in the size of the atoms and ions of the rare-earth elements as the atomic number increases. The lanthanide contraction is a significant factor in the close chemical similarity of the rare-earth elements and affects the properties of the post-lanthanide elements. This phenomenon has implications for various properties, such as atomic size, density, and chemical reactivity.
Table of Content
- What is Lanthanide?
- What is Lanthanide Contraction?
- Consequences of Lanthanide Contraction
- Cause of Lanthanide Contraction
- Electronic Configuration of Lanthanide