When two deuterium nuclei fuse together to form a tritium nuclei, we get a

Options

A. Neutron
B. Deuteron
C. `prop`-particle
D. proton

Answer

To solve the question, we need to analyze the fusion of two deuterium nuclei and identify the products formed during this reaction.

### Step-by-Step Solution:

1. **Identify the Nuclei Involved**:
- Deuterium (²H) is an isotope of hydrogen with one proton and one neutron. Its notation is ¹²H or simply D.
- We have two deuterium nuclei fusing together.

2. **Write the Fusion Reaction**:
- When two deuterium nuclei fuse, the reaction can be represented as:
\[ ²H + ²H \rightarrow ³H + X \]
- Here, \(X\) represents the other product formed in the reaction.

3. **Conservation of Mass and Charge**:
- The total atomic mass on the left side (reactants) must equal the total atomic mass on the right side (products).
- The atomic mass of two deuterium nuclei is:
\[ 2 \times 2 = 4 \text{ (since each deuterium has an atomic mass of 2)} \]
- The atomic mass of tritium (³H) is 3.

4. **Calculate the Remaining Mass**:
- To find the mass of \(X\):
\[ 4 \text{ (total mass of reactants)} - 3 \text{ (mass of tritium)} = 1 \]
- Thus, the atomic mass of \(X\) is 1.

5. **Calculate the Atomic Number**:
- The atomic number of each deuterium nucleus is 1 (since they are isotopes of hydrogen).
- Therefore, the total atomic number from the two deuterium nuclei is:
\[ 1 + 1 = 2 \]
- The atomic number of tritium is also 1.

6. **Determine the Atomic Number of \(X\)**:
- To find the atomic number of \(X\):
\[ 2 \text{ (total atomic number of reactants)} - 1 \text{ (atomic number of tritium)} = 1 \]
- Thus, the atomic number of \(X\) is 1.

7. **Identify the Product \(X\)**:
- An atomic mass of 1 and an atomic number of 1 corresponds to a proton (¹H).
- Therefore, the product \(X\) is a proton.

8. **Final Reaction**:
- The complete fusion reaction can be summarized as:
\[ ²H + ²H \rightarrow ³H + ¹H \]
- Thus, when two deuterium nuclei fuse together, they produce one tritium nucleus and one proton.

### Conclusion:
When two deuterium nuclei fuse together, we get a tritium nucleus and a proton.

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