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Chapter 18: Problem 63

Although the energy transferred per event when a living creature is exposed to radiation is small, why is such exposure dangerous?

Short Answer

Expert verified
Although the energy transferred per event when a living creature is exposed to radiation is small, such exposure is dangerous because ionizing radiation can damage the chemical bonds within a cell's molecules, including DNA, proteins, and other essential components. This damage may lead to DNA mutations, cell dysfunction, or cell death. Repeated exposure results in cumulative damage which can cause various health problems, such as an increased risk of cancer, birth defects, and other genetic disorders. Since radiation damage is stochastic and has no specific threshold for safety, even low levels of exposure can be harmful if continuous or repeated over a long period. Therefore, minimizing radiation exposure is crucial to prevent long-term health consequences.

Step by step solution

01

Define radiation and its types

Radiation is energy emitted as particles or electromagnetic waves. There are two basic types of radiation: ionizing radiation and non-ionizing radiation. Ionizing radiation has enough energy to remove tightly bound electrons from atoms, creating ions. This type of radiation includes alpha particles, beta particles, and gamma rays. Non-ionizing radiation is less harmful and includes visible light, ultraviolet light, and radio waves.
02

Explain the interaction between ionizing radiation and living cells

When living cells are exposed to ionizing radiation, the energy from the radiation can damage the chemical bonds within the cell's molecules, including DNA, proteins, and other essential cellular components. In some cases, this damage can lead to mutations in the DNA, which can result in cell dysfunction or even cell death.
03

Describe the cumulative effects of radiation exposure

Although a single exposure to radiation may result in a small amount of damage to a living cell, repeated exposure can result in a cumulative effect, leading to more significant damage. Over time, this damage can lead to a variety of health problems, such as an increased risk of cancer, birth defects, and other genetic disorders.
04

Explain the stochastic nature of radiation damage

The damage caused by radiation exposure is stochastic, meaning that there is no specific threshold below which radiation is considered safe. Instead, the probability of damage occurring increases with the amount of exposure. As a result, even low levels of radiation exposure can be harmful, especially if the exposure is continuous or repeated over a long period.
05

Conclude with the importance of minimizing radiation exposure

In conclusion, even though the energy transferred per event when a living creature is exposed to radiation is small, it is still dangerous because it can cause damage to the cell's molecules and, over time, lead to severe health problems. Therefore, it is essential to minimize radiation exposure whenever possible to prevent long-term health consequences.

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Most popular questions from this chapter

The isotope \(\frac{234}{92} \mathrm{U}\) is known to undergo a series of five successive alpha-particle emissions before ending up as the isotope \(\frac{214}{82} \mathrm{Pb}\) (at which point the isotope undergoes a series of beta-particle emissions before finally reaching stability). Write nuclear equations for the series of alpha emissions undergone by \(\frac{244}{92} \mathrm{U}\) as it decays to \(_{82}^{214} \mathrm{Pb}\)

Complete each of the following nuclear equations by supplying the missing particle. a. \(\quad_{89}^{210} \mathrm{Ac} \rightarrow_{2}^{4} \mathrm{He}+?\) b. \(\quad \frac{131}{53} \mathrm{I} \rightarrow_{54}^{131} \mathrm{Xe}+?\) c. \(_{86}^{210} \mathrm{Rn} \rightarrow_{2}^{4} \mathrm{He}+?\)

Write a balanced nuclear equation for the bombardment of \(_{7}^{14} \mathrm{N}\) with alpha particles to produce \(_{8}^{17} \mathrm{O}\) and a proton.

The element zinc in nature consists of five isotopes with higher than \(0.5 \%\) natural abundances, with mass numbers \(64,66,67,68,\) and \(70 .\) Write the nuclear symbol for each of these isotopes. How many protons does each contain? How many neutrons does each contain?

When a nuclide decomposes through a series of steps before reaching stability, the nuclide is said to have gone through a ___________ series.
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