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(D) The lanthanoids are the elements from $Z = 57$ to $71$. $La$ $(Z = 57)$ is the first element of the $4f$ series and is often considered the protot

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$La$

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(D) The lanthanoids are the elements from $Z = 57$ to $71$. $La$ $(Z = 57)$ is the first element of the $4f$ series and is often considered the prototype for lanthanoid chemistry due to its $3+$ oxidation state and ionic radius similarity. $Lu$ $(Z = 71)$ is the last element of the lanthanoid series. $Ce$ $(Z = 58)$ is a lanthanoid itself. $Lr$ $(Z = 103)$ is an actinoid. Among the given options,$La$ is the most characteristic element representing the lanthanoid series properties.

Which of the following elements shows the greatest similarity to the lanthanoids?

Similar Questions

Number of colourless lanthanoid ions among the following is . . . . .
$Eu^{3+}, Lu^{3+}, Nd^{3+}, La^{3+}, Sm^{3+}$

Find the atomic number of the element at which pairing in the $4f$ orbital starts.

Discuss similarities and dissimilarities in properties of lanthanoids and actinoids.

Identify the non-radioactive element from the following.

Which actinoid elements have a $5f^{14}$ electronic configuration in their atoms?

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