The outer electronic configurations of some elements are :
`{:((i) 3s ^(2) 3p ^(4), (ii) 3d ^(10)4s ^(2)),((iii) 3s ^(2) 3p ^(6) 4s ^(2), (iv) 6s ^(2) 4f ^(3)):}`
State to which block in the periodic table each of these elements belong.

Explanation

To determine the block of the periodic table to which each element belongs based on their outer electronic configurations, we will analyze each configuration step by step.

### Step 1: Analyze the first configuration: 3s² 3p⁴
- The last electron is in the 3p subshell.
- Since the last electron is in a p subshell, this element belongs to the **p-block** of the periodic table.

### Step 2: Analyze the second configuration: 3d¹⁰ 4s²
- Here, we have filled 3d and filled 4s subshells.
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