4./Complete the mosing partidro in the hudlear equations beicw. A ) 227 +88 Rq 231. १० h) 231

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Chapter1: Chemical Foundations
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### Completing Nuclear Equations

**Task: Complete the missing particles in the nuclear equations below.**

**Equation A:**

\[ _{90}^{231}\text{Th} \rightarrow \underline{\hspace{1cm}} + _{88}^{227}\text{Ra} \]

**Equation B:**

\[ _{90}^{231}\text{Th} \rightarrow \underline{\hspace{1cm}} + _{89}^{231}\text{Ac} \]

#### Explanation:

1. **Equation A:**
   - This equation involves thorium-231 (Th) decaying into radium-227 (Ra).
   - To balance the equation, consider both the mass numbers (superscripts) and atomic numbers (subscripts). The missing particle must balance these numbers.

2. **Equation B:**
   - Similarly, this equation involves thorium-231 (Th) decaying into actinium-231 (Ac).
   - The missing particle should balance the mass and atomic numbers in the same manner.
Transcribed Image Text:### Completing Nuclear Equations **Task: Complete the missing particles in the nuclear equations below.** **Equation A:** \[ _{90}^{231}\text{Th} \rightarrow \underline{\hspace{1cm}} + _{88}^{227}\text{Ra} \] **Equation B:** \[ _{90}^{231}\text{Th} \rightarrow \underline{\hspace{1cm}} + _{89}^{231}\text{Ac} \] #### Explanation: 1. **Equation A:** - This equation involves thorium-231 (Th) decaying into radium-227 (Ra). - To balance the equation, consider both the mass numbers (superscripts) and atomic numbers (subscripts). The missing particle must balance these numbers. 2. **Equation B:** - Similarly, this equation involves thorium-231 (Th) decaying into actinium-231 (Ac). - The missing particle should balance the mass and atomic numbers in the same manner.
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