Question
Chemistry Question on The Actinoids
The incorrect statement among the following is
A
Actinoids are highly reactive metals, especially when finely divided
B
Actinoid contraction is greater for element-to-element than Lanthanoid contraction.
C
Most of the trivalent Lanthanoid ions are colorless in the solid state.
D
Lanthanoids are good conductors of heat and electricity
Answer
Actinoids are highly reactive metals, especially when finely divided
Explanation
Solution
The correct answer is option (A) : Actinoids are highly reactive metals, especially when finely divided