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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an? Answer is isotope of parent. Can anybody explain how.?
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Understanding Radioactive Emission
Radioactive substances can emit different types of particles during decay, primarily alpha and beta particles. The behavior of these emissions influences the resulting daughter nuclide.
Alpha Particles
- Alpha particles consist of 2 protons and 2 neutrons.
- When an alpha particle is emitted, the atomic number decreases by 2, and the mass number decreases by 4.
Beta Particles
- Beta particles are electrons (β-) emitted from the nucleus when a neutron is transformed into a proton.
- The emission of a beta particle increases the atomic number by 1, while the mass number remains unchanged.
Emission Ratio
- In this scenario, the number of beta particles emitted is twice the number of alpha particles.
- Let’s consider:
- Number of alpha emissions = 1
- Number of beta emissions = 2
Resulting Changes
1. Alpha Emission:
- Atomic Number (Z) = Z - 2
- Mass Number (A) = A - 4
2. Beta Emissions:
- Atomic Number (Z) = (Z - 2) + 2 = Z
- Mass Number (A) = A - 4 (remains unchanged)
Conclusion: Daughter Isotope
- The daughter nuclide retains the same atomic number but has a lower mass number than the parent.
- This means it is an isotope of the parent nuclide because isotopes are defined as variants of the same element with different mass numbers.
This explains why the resulting daughter is an isotope of the parent, maintaining the same elemental identity but differing in mass.
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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an? Answer is isotope of parent. Can anybody explain how.?
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