Question

❤❤Explain me properties of f block elements in detail ....❤❤​

Answer 1

Answer:

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Explanation:

The f–block elements of the periodic table consists of those elements whose atoms or ions have valence electrons in f–orbitals of anti–penultimate shell. f–block elements are also termed as inner transition elements as they are transition elements within the transition elements i.e., d–block elements. The general electronic configuration of the f–block elements is given as

(n − 2)f 1 − 14(n − 1)d0 − 1ns1 − 2.

Classification of f–block elements:

Depending upon whether the last electron enters a 4f orbital or a 5f orbital, the f–block elements have been divided into two series as lanthanides and actinides.

LanthanidesLANTHANIDES

Lanthanides:

The elements in which the last electron enters one of the 4f orbitals are called 4f–block elements or first inner transition series. These are also called lanthanides or lanthanons, because they come immediately after lanthanum. The 14 lanthanides cerium (Ce, Z=58) through lutetium (Lu, Z=71) lie between lanthanum (La, Z=57)and hafnium (Hf, Z=72) in the third d–block transition series.

ActinidesACTINIDES

Actinides:

The elements in which the last electron enters one of the 5f orbitals are called 5f–block elements or second inner transition series. These are also called actinides or actinons or actinoids because they come immediately after actinium. These actinoids are radioactive in nature and lie below the lanthanides.

Answer 2

Answer:

The f block elements are the lanthanides and actinides and are called the inner transition elements because of their placement in the periodic table due to their electron configurations. The f orbitals of the electron shell are filled with “n-2.” There is a maximum of fourteen electrons that can occupy the f orbitals.

Explanation:

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