adj.单原子的；单质的；一价的

Helium is an example of a monatomic gas.
氦气是单原子气体的一个例子。
Monatomic elements, like neon, do not form molecules.
像氖这样的单原子元素不会形成分子。
In a plasma state, matter exists as positively charged ions and monatomic electrons.
等离子态下，物质以正离子和单电子形式存在。
The Periodic Table lists all known chemical elements, including both monatomic and polyatomic species.
周期表列出了所有已知的化学元素，包括单原子和多原子物种。
Atoms of noble gases are monatomic and do not readily form chemical compounds.
惰性气体的原子是单原子的，不易形成化合物。
In physics, the behavior of monatomic ideal gases simplifies many thermodynamic calculations.
在物理学中，单原子理想气体的行为简化了许多热力学计算。
Monatomic gold, also known as nano-gold or colloidal gold, has unique properties in medicine and electronics.
单原子金，也称为纳米金或胶体金，在医学和电子学中具有独特性质。
At standard temperature and pressure, most elements exist as either monatomic or diatomic gases.
在标准温度和压力下，大多数元素以单原子或双原子气体形式存在。
The study of monatomic layers, such as graphene, has revolutionized the field of materials science.
对单原子层如石墨烯的研究彻底改变了材料科学领域。
In chemistry, understanding the reactivity of monatomic ions is crucial for predicting compound formation.
在化学中，理解单原子离子的活性对于预测化合物的形成至关重要。