Understand the Problem
The text on the board contains notes about f-block elements, specifically lanthanides, their electronic configuration, and various related chemical properties. It outlines several elements with their respective configurations and key points regarding their characteristics and behavior.
Answer
f-block elements include lanthanides with a +3 oxidation state.
f-block elements include lanthanides and have the general electronic configuration of ns²(n-2)f¹⁴. They often exhibit a +3 oxidation state and show lanthanoid contraction.
Answer for screen readers
f-block elements include lanthanides and have the general electronic configuration of ns²(n-2)f¹⁴. They often exhibit a +3 oxidation state and show lanthanoid contraction.
More Information
Lanthanides are known for their magnetic and phosphorescent properties, essential in various industrial applications.
Tips
A common mistake is confusing the electronic configuration of lanthanides. Remember the gradual filling of the 4f orbitals.
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