non radioactive isotope

简明释义

非放射性同位素

英英释义

例句

1.The medical field utilizes non radioactive isotopes for diagnostic imaging techniques.

医学领域利用非放射性同位素进行诊断成像技术。

2.In geology, non radioactive isotopes help determine the age of rocks through stable isotope analysis.

在地质学中，非放射性同位素通过稳定同位素分析帮助确定岩石的年龄。

3.Carbon-12 is a common example of a non radioactive isotope, which is stable and found in all living organisms.

碳-12是一个常见的非放射性同位素，它是稳定的，并且存在于所有生物体中。

4.Scientists often use non radioactive isotopes to trace chemical pathways in biological research.

科学家们经常使用非放射性同位素来追踪生物研究中的化学路径。

5.The non radioactive isotope of oxygen, Oxygen-16, is essential for understanding atmospheric processes.

氧的非放射性同位素氧-16对于理解大气过程至关重要。

作文

In the world of chemistry and physics, isotopes play a crucial role in our understanding of matter. An isotope is defined as a variant of a chemical element that has the same number of protons but a different number of neutrons in its nucleus. This difference in neutron count gives rise to different physical properties, but it is important to note that not all isotopes are unstable or radioactive. In fact, some isotopes are completely stable and do not emit radiation. These are referred to as non radioactive isotopes (非放射性同位素). Understanding non radioactive isotopes is essential for various scientific applications, including medicine, environmental science, and nuclear energy.One of the most common examples of a non radioactive isotope is Carbon-12. Carbon exists in nature primarily as two stable isotopes: Carbon-12 and Carbon-13. While Carbon-12 makes up about 98.9% of all carbon found on Earth, it is the non radioactive isotope that plays a vital role in organic chemistry. The stability of Carbon-12 allows it to form the backbone of countless organic molecules, which are essential for life. Without non radioactive isotopes like Carbon-12, the complexity of biological systems would not be possible.Another important application of non radioactive isotopes is in the field of radiocarbon dating. This technique relies on the presence of Carbon-14, a radioactive isotope of carbon, to determine the age of ancient organic materials. However, it is the abundance of the non radioactive isotopes, Carbon-12 and Carbon-13, that provides a baseline for comparison. By measuring the ratio of Carbon-14 to these stable isotopes, scientists can accurately estimate the time since the organism's death, thus unveiling the mysteries of our planet's history.In environmental science, non radioactive isotopes are also used to track and study various processes. For instance, isotopes of oxygen and hydrogen are utilized in hydrology to trace the movement of water through the environment. By analyzing the ratios of non radioactive isotopes in water samples, researchers can gain insights into climate change, groundwater flow, and even pollution sources. This method provides a non-invasive approach to studying complex environmental systems.Additionally, non radioactive isotopes find their place in the realm of nuclear energy. While many discussions around nuclear power focus on radioactive isotopes like Uranium-235 and Plutonium-239, the role of non radioactive isotopes cannot be overlooked. Isotopes such as Uranium-238, which is stable, serve as a fertile material in nuclear reactors. They can absorb neutrons and undergo a process called neutron capture, ultimately breeding fissile isotopes that can sustain nuclear reactions. This highlights the importance of both types of isotopes in the development of nuclear technology.In conclusion, non radioactive isotopes (非放射性同位素) are integral to our understanding of the natural world. From their role in organic chemistry to their applications in environmental science and nuclear energy, these stable isotopes contribute significantly to various fields of research and technology. As we continue to explore the complexities of matter, the importance of non radioactive isotopes will undoubtedly remain a key focus in the scientific community.