The compound unstable nucleus `""_(92) ^(236) U` oftendecays in accordance with the following reaction `""_(92)^(236) U to ""_(54)^(140) Xe + ""_(38)^(94) Sr` + other particles
In the nuclear reaction presented above , the "other particle" might be

Options

A. an alpha particle
B. two protons
C. one protons and neutron
D. two neutrons

Answer

To solve the problem, we need to analyze the nuclear decay reaction provided:

\[ _{92}^{236}U \rightarrow _{54}^{140}Xe + _{38}^{94}Sr + \text{other particles} \]

### Step 1: Analyze the Reaction
The reaction shows that Uranium-236 decays into Xenon-140 and Strontium-94, along with some other particles. We need to determine what these "other particles" could be.

### Step 2: Check Conservation of Protons
In nuclear reactions, both the number of protons and the total mass number must be conserved.

- **Initial protons**: Uranium (U) has 92 protons.
- **Final protons**:
- Xenon (Xe) has 54 protons.
- Strontium (Sr) has 38 protons.

Calculating the total protons on the right side:
\[ 54 + 38 = 92 \]
This shows that the number of protons is conserved, meaning there are no additional protons in the "other particles."

### Step 3: Check Conservation of Mass Number
Now, let's check the mass number.

- **Initial mass number**: 236 (from Uranium-236).
- **Final mass number**:
- Mass number of Xenon (Xe) is 140.
- Mass number of Strontium (Sr) is 94.

Calculating the total mass number on the right side:
\[ 140 + 94 = 234 \]
Now, we compare this with the initial mass number:
\[ 236 - 234 = 2 \]
This indicates that we are missing a total mass number of 2 from the "other particles."

### Step 4: Identify the Other Particles
Since we need to account for a mass number of 2 and we have already established that there are no additional protons, the only possible particles that can account for this mass number are neutrons.

- Each neutron has a mass number of 1. Therefore, to account for a total mass number of 2, we need **2 neutrons**.

### Conclusion
The "other particles" in the decay of Uranium-236 into Xenon-140 and Strontium-94 must be **2 neutrons**.

### Final Answer
The "other particle" might be **2 neutrons**.

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