Question

+3 oxidation state is not common for which f block elements

Answer 1

Eu

Yb

Tb

Explanation:

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Answer 2

The answer is lanthanides:

Explanation:

Lanthanides

• Although lanthanides do not tend to generate oxo-cations, the actinide series has multiple oxo-cations.
• The compounds generated by lanthanides are less basic than those formed by actinides, which are very basic.

• Except for promethium, all lanthanides are non-radioactive in nature, whereas all actinide series elements are radioactive.
• The elements of the F block are classified into two groups: lanthanoids and actinoids.
• This group of elements is known as the inner transition metals because they provide a transition between the s block and the d block elements in the periodic table's 6th and 7th rows.