Answer :
Final answer:
Alpha decay of Radon-224 results in the emission of an alpha particle, transforming it into Polonium-220. This process involves subtracting 4 from the mass number and 2 from the atomic number. Thus, the resulting daughter isotope is Polonium-220.
Explanation:
Understanding Alpha Decay of Radon-224
When a Radon-224 atom undergoes alpha decay, it emits an alpha particle, which consists of 2 protons and 2 neutrons (essentially a helium nucleus). The initial isotope, represented as 224Rn, has an atomic number of 86.
To find the resulting daughter isotope, we apply the following calculations:
- Subtract 4 from the mass number (224 - 4 = 220).
- Subtract 2 from the atomic number (86 - 2 = 84).
These calculations indicate that the daughter isotope is represented as 220Po (Polonium-220) with an atomic number of 84. Therefore, the complete equation for the decay can be summarized as:
224Rn → 220Po + α
This shows that after alpha decay of Radon-224, the resulting daughter isotope is Polonium-220.
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