excited state

简明释义

激励状态

英英释义

例句

1.Photons are emitted when an atom transitions from an excited state back to its ground state.

当原子从激发态返回到基态时，会发射光子。

2.In quantum mechanics, particles can exist in an excited state before returning to their ground state.

在量子力学中，粒子可以处于激发态，然后返回到基态。

3.The excited state of the atom is less stable than its ground state.

原子的激发态比其基态不稳定。

4.When an electron absorbs energy, it can move to a higher energy level, entering an excited state.

当电子吸收能量时，它可以移动到更高的能级，进入激发态。

5.Scientists study the excited state of molecules to understand chemical reactions better.

科学家研究分子的激发态以更好地理解化学反应。

作文

In the realm of physics and chemistry, the term excited state refers to a condition in which an atom or molecule has absorbed energy and is at a higher energy level than its ground state. This phenomenon is crucial for understanding various processes, such as chemical reactions, fluorescence, and the behavior of materials under different conditions. When an electron in an atom absorbs energy, it can move from its ground state to an excited state, resulting in a temporary alteration of the atom's properties.The concept of excited state is particularly significant in the study of light and color. For instance, when certain materials are exposed to light, their electrons can be excited to higher energy levels. As these electrons return to their original positions, they release energy in the form of light, contributing to the phenomenon known as fluorescence. This process is not only fascinating but also has practical applications in various fields, including medicine and technology.Moreover, the excited state plays a vital role in chemical reactions. When reactants collide, they may provide enough energy to some of the electrons, pushing them into an excited state. This temporary state can lead to the formation of new bonds and ultimately result in the creation of products. Understanding how molecules transition between their ground and excited states is essential for chemists, as it helps them predict reaction pathways and outcomes.In addition to its implications in chemistry, the concept of excited state extends to the field of quantum mechanics. Here, particles can exist in superpositions of states, and the excited state represents one of those possible configurations. Quantum systems, such as atoms and photons, can exhibit behaviors that challenge classical intuition, making the study of their excited states both complex and intriguing.Furthermore, the excited state is not limited to just individual atoms or molecules; it can also apply to larger systems, such as solids and liquids. In solid-state physics, the concept helps explain phenomena like electrical conductivity and magnetism. For example, in semiconductors, the presence of excited states allows for the conduction of electricity, as electrons can move freely when they gain sufficient energy.In conclusion, the term excited state encompasses a wide range of phenomena across multiple disciplines. From the absorption and emission of light in fluorescence to the intricate dance of electrons during chemical reactions, understanding excited states is fundamental to many scientific inquiries. As researchers continue to explore these concepts, they unlock new possibilities in technology, medicine, and our overall understanding of the universe. The exploration of excited states not only enhances our knowledge but also paves the way for innovative advancements in various fields, illustrating the interconnectedness of science and the continuous quest for discovery.

在物理和化学领域，术语激发态指的是原子或分子吸收能量并处于比基态更高能量水平的状态。这一现象对于理解各种过程至关重要，例如化学反应、荧光以及材料在不同条件下的行为。当原子中的电子吸收能量时，它可以从基态跃迁到激发态，导致原子性质的暂时改变。激发态的概念在光和颜色的研究中尤为重要。例如，当某些材料暴露在光下时，它们的电子可能被激发到更高的能量水平。当这些电子返回其原始位置时，它们以光的形式释放能量，形成荧光现象。这一过程不仅引人入胜，而且在医学和技术等多个领域具有实际应用。此外，激发态在化学反应中也起着至关重要的作用。当反应物碰撞时，它们可能会为一些电子提供足够的能量，使其进入激发态。这种暂时状态可能导致新键的形成，并最终产生产品。了解分子如何在基态和激发态之间转变对化学家来说至关重要，因为这有助于他们预测反应路径和结果。除了在化学中的应用，激发态的概念还扩展到量子力学领域。在这里，粒子可以存在于态的叠加中，而激发态代表了这些可能配置之一。量子系统，如原子和光子，表现出挑战经典直觉的行为，使得对其激发态的研究既复杂又引人入胜。此外，激发态不仅限于单个原子或分子；它也适用于较大的系统，如固体和液体。在固态物理中，这一概念有助于解释电导率和磁性等现象。例如，在半导体中，激发态的存在允许电流的导通，因为当电子获得足够的能量时，它们可以自由移动。总之，术语激发态涵盖了多个学科中的广泛现象。从荧光中的光的吸收和发射到化学反应中电子的复杂舞蹈，理解激发态是许多科学探究的基础。随着研究人员继续探索这些概念，他们解锁了技术、医学和我们整体宇宙理解的新可能性。对激发态的探索不仅增强了我们的知识，也为各个领域的创新进步铺平了道路，展示了科学的相互联系和持续的发现追求。