Tabulate the differences between lanthanoids and actinoids
Answers
Answer:
Hence Lanthanoids and actinoids are f block elements of the periodic table. They are metal but soft .
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Differentiate between lanthanoids and actinoids.
Lanthanide Actinoids
Binding energy of 4f orbitals is higher. Binding energy of 5f orbitals is higher.
Lanthanoids have a low tendency to form complexes. Actinoids show greater tendency to form complexesHence Lanthanoids and actinoids are f block elements of the periodic table. They are metal but
Differentiate between lanthanoids an
Answer:
Lanthanides
Actinides
Oxidation states
most common oxidation sates=+3
other oxidation state=+2, +4
Oxidation states
Most common oxidation states=+3
other oxidation states= +4,+5,+6
Atomic and ionic size
Size of the atom/ion decreases across the period.
In the group, size of a lanthanide element is smaller than the actinide of its own group. Atomic and ionic size Size of atom/ion decreases along the period.
Actinide has largest size in its own group
Chemical activity
Less tendency towards the complex formation. Except promethium, they are non radioactive.
They do not form oxidations
oxides and hydroxides are less basic. Chemical activity
Stronger tendency towards the complex formation. All the actinides are radioactive.
They form oxocations like
oxides and hydroxides are more basic.
Electronic configuration
Lanthanum(La) - 5d16s2 Electronic configuration Actinium (Ac)- 6d17s2