What particle is produced by the decay of thorium-214 to radium-210?

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Identify the type of decay process involved in the transformation from thorium-214 to radium-210.

Recognize that the atomic number decreases by 2 and the mass number decreases by 4, which is characteristic of alpha decay.

Write the nuclear equation for the alpha decay: \( ^{214}_{90}\text{Th} \rightarrow ^{210}_{88}\text{Ra} + ^{4}_{2}\text{He} \).

Understand that the particle produced in this decay is an alpha particle, which is represented by \( ^{4}_{2}\text{He} \) or \( \alpha \).

Conclude that the decay of thorium-214 to radium-210 produces an alpha particle.

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Radioactive Decay

Radioactive decay is the process by which an unstable atomic nucleus loses energy by emitting radiation. This can occur in various forms, including alpha decay, beta decay, and gamma decay. Understanding this concept is crucial for identifying the type of particle emitted during the decay of a specific isotope.

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Rate of Radioactive Decay

Alpha Particle

An alpha particle consists of two protons and two neutrons, making it identical to a helium nucleus. It is a common product of alpha decay, where heavy nuclei, such as thorium-214, emit alpha particles to achieve a more stable configuration. Recognizing the characteristics of alpha particles helps in predicting the products of nuclear reactions.

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Characteristics of Alpha Particles

Nuclear Reaction Equations

Nuclear reaction equations represent the transformation of one element into another through decay processes. They balance the mass and atomic numbers of the reactants and products. In the case of thorium-214 decaying to radium-210, writing and analyzing the nuclear equation allows us to identify the emitted particle and understand the conservation laws in nuclear chemistry.

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