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The element with atomic number 56 belong...

The element with atomic number `56` belongs to which block ?

A

s

B

p

C

d

D

f

Text Solution

AI Generated Solution

The correct Answer is:
To determine which block the element with atomic number 56 belongs to, we can follow these steps: ### Step 1: Identify the Element The element with atomic number 56 is Barium (Ba). ### Step 2: Determine the Electron Configuration The electron configuration of Barium is: \[ \text{Xe} \, 6s^2 \] This indicates that the last electrons being added are in the 6s subshell. ### Step 3: Identify the Block In the periodic table, elements are categorized into blocks based on the subshell that is being filled with electrons: - **s-block**: Groups 1 and 2 (including Helium) - **p-block**: Groups 13 to 18 - **d-block**: Transition metals (Groups 3 to 12) - **f-block**: Lanthanides and Actinides Since the last electron of Barium is in the s subshell (6s), it belongs to the **s-block**. ### Conclusion Thus, the element with atomic number 56 (Barium) belongs to the **s-block** of the periodic table. ---
To determine which block the element with atomic number 56 belongs to, we can follow these steps: ### Step 1: Identify the Element The element with atomic number 56 is Barium (Ba). ### Step 2: Determine the Electron Configuration The electron configuration of Barium is: \[ \text{Xe} \, 6s^2 \] ...
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