9 4 Be+ 1 1H→10 5 B+

The balanced nuclear reaction you've provided appears to involve a boron-9 (B-9) nucleus capturing a positron (beta-plus decay, 1H or proton) and resulting in a boron-10 (B-10) nucleus. Let's interpret and balance it clearly: **Unbalanced reaction:** \[ {}^{9}_{4}\mathrm{Be} + {}^{1}_{1}\mathrm{H} \rightarrow {}^{10}_{5}\mathrm{B} \] **Steps to analyze:** 1. **Identify the species:** - Left: Beryllium-9 (atomic number 4, mass number 9) - Proton (hydrogen-1) (atomic number 1, mass number 1) 2. **Products:** - Boron-10 (atomic number 5, mass number 10) 3. **Check atomic numbers and mass numbers:** - Left atomic number: 4 (Be) + 1 (H) = 5 - Left mass number: 9 + 1 = 10 - Right: Boron-10 with atomic number 5 and mass number 10. 4. **Balance check:** - Atomic numbers and mass numbers are balanced. **Conclusion:** The reaction is a fusion process where beryllium-9 absorbs a proton to form boron-10: \[ {}^{9}_{4}\mathrm{Be} + {}^{1}_{1}\mathrm{H} \rightarrow {}^{10}_{5}\mathrm{B} \] **Note:** Typically, in nuclear reactions, the notation often includes the context. Since the reaction involves a proton being captured, no additional particles are necessary for balancing. **Final answer:** \[ {}^{9}_{4}\mathrm{Be} + {}^{1}_{1}\mathrm{H} \rightarrow {}^{10}_{5}\mathrm{B} \] This represents a simple nuclear fusion reaction.