Question

The element Americium Belongs to

• A. s-block
• B. p-block
• C. Actinide series
• D. lathawde series

Hint:

To quickly classify f-block elements:
- The $4f$ series (Atomic numbers 58--71) is the Lanthanide series.
- The $5f$ series (Atomic numbers 90--103) is the Actinide series.
Elements after Uranium ($Z=92$) are all synthetic and are part of the Actinide series.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
The question asks for the specific classification or series within the periodic table for the element Americium.
Americium is a synthetic radioactive element with the atomic symbol Am and atomic number 95.

Step 3: Detailed Explanation:
Americium (Am) has an atomic number of 95.
Its electronic configuration can be represented as $[Rn] 5f^7 7s^2$.
Elements with atomic numbers ranging from 89 (Actinium) or 90 (Thorium) to 103 (Lawrencium) are characterized by the filling of the $5f$ orbitals.
These elements are collectively known as the Actinide series and are placed in the second row of the f-block at the bottom of the periodic table.
Since Americium (95) falls within this range, it is an actinide.

Step 4: Final Answer:
Americium belongs to the Actinide series, which corresponds to option (C).