With which block `""_(30)Zn` belongs ?

Options

A. Option 1. s
B. Option 2. p
C. Option 3. d
D. Option 4. f

Answer

To determine which block the element Zinc (Zn) belongs to, we can follow these steps:

### Step 1: Identify the Atomic Number
Zinc has an atomic number of 30. This means it has 30 electrons.

### Step 2: Write the Electronic Configuration
The electronic configuration of Zinc can be written as follows:
- The electrons fill the orbitals in the order of increasing energy levels.
- The configuration is:
- 1s² (2 electrons)
- 2s² (2 electrons)
- 2p⁶ (6 electrons)
- 3s² (2 electrons)
- 3p⁶ (6 electrons)
- 4s² (2 electrons)
- 3d¹⁰ (10 electrons)

Putting it all together, the full electronic configuration of Zinc is:
\[ \text{Zn: } 1s^2 \, 2s^2 \, 2p^6 \, 3s^2 \, 3p^6 \, 4s^2 \, 3d^{10} \]

### Step 3: Determine the Last Electron's Orbital
In the electronic configuration, we observe that the last electrons are filling the 3d orbital. The last filled subshell is the 3d subshell.

### Step 4: Identify the Block
Elements are classified into blocks based on the subshell that is being filled with the last electron:
- The s-block includes groups 1 and 2, where the last electron enters the s subshell.
- The p-block includes groups 13 to 18, where the last electron enters the p subshell.
- The d-block includes transition metals, where the last electron enters the d subshell.

Since the last electron of Zinc enters the d subshell, we conclude that Zinc belongs to the d-block.

### Final Answer
Zinc (Zn) belongs to the d-block of the periodic table.

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