Which of the following does not belong to 3d series of transition elements?

Options

A. Titanium
B. Iron
C. Palladium
D. Vanadium

Answer

To determine which element does not belong to the 3d series of transition elements, we need to identify the elements that are included in this series and then find the one that does not fit.

### Step-by-Step Solution:

1. **Identify the 3d Series Elements**:
The 3d series of transition elements includes the following elements:
- Scandium (Sc)
- Titanium (Ti)
- Vanadium (V)
- Chromium (Cr)
- Manganese (Mn)
- Iron (Fe)
- Cobalt (Co)
- Nickel (Ni)
- Copper (Cu)

2. **Check the Options**:
We need to look at the options provided in the question. Since the options are not listed here, we will assume that one of them is Palladium (Pd).

3. **Determine the Position of Palladium**:
Palladium (Pd) is not part of the 3d series. Instead, it is part of the 4d series of transition metals. The 4d series includes elements from Yttrium (Y) to Cadmium (Cd).

4. **Conclusion**:
Since Palladium does not belong to the 3d series of transition elements, it is the correct answer to the question.

### Final Answer:
Palladium (Pd) does not belong to the 3d series of transition elements.

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