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In the long form of the periodic table, ...

In the long form of the periodic table, the transition metals are placed in

A

s-block

B

f-block

C

d-block

D

s and p- block.

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To solve the question regarding the placement of transition metals in the long form of the periodic table, we can follow these steps: ### Step 1: Understand the Structure of the Periodic Table The periodic table is divided into several blocks based on the electron configuration of the elements. These blocks include the s-block, p-block, d-block, and f-block. ### Step 2: Identify the Blocks - **s-block**: This includes groups 1 and 2 (alkali and alkaline earth metals). - **p-block**: This includes groups 13 to 18 (the main group elements). - **d-block**: This includes transition metals, which are characterized by the filling of d-orbitals. - **f-block**: This includes lanthanides and actinides, often referred to as inner transition metals. ### Step 3: Focus on Transition Metals Transition metals are specifically found in the d-block of the periodic table. They are defined by having partially filled d-orbitals. ### Step 4: Recognize the Exception Zinc is a notable exception among the d-block elements as it has a fully filled d-orbital configuration (3d10). Therefore, it is not classified as a transition metal. ### Step 5: Conclude the Placement Based on the above understanding, we conclude that transition metals are placed in the d-block of the periodic table. ### Final Answer: In the long form of the periodic table, the transition metals are placed in the **d-block**. ---
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NCERT FINGERTIPS ENGLISH-PRACTICE PAPER -2-Practice Paper 2
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