n. 名词原子
The scientist studied the structure of the atom in the laboratory.
科学家在实验室研究原子的结构。
Each element is made up of a unique type of atom.
每种元素都由一种独特类型的原子组成。
The atom is the basic unit of matter in chemistry.
原子是化学中物质的基本单位。
An atom consists of protons, neutrons, and electrons.
一个原子由质子、中子和电子组成。
The concept of the atom dates back to ancient Greece.
原子的概念可以追溯到古希腊。
When two atom bonds form, a molecule is created.
当两个原子结合时,就会形成分子。
The mass of an atom is concentrated in its nucleus.
原子的质量集中在它的核中。
Scientists use microscopes to observe the behavior of a single atom.
科学家使用显微镜观察单个原子的行为。
The atom has been a fundamental concept in modern physics.
原子是现代物理学中的一个基本概念。
We cannot see an atom with the naked eye.
我们无法用肉眼看到原子。
An electron orbits the nucleus of an atom.
电子绕着原子的核旋转。
The discovery of the atom revolutionized our understanding of matter.
原子的发现彻底改变了我们对物质的理解。
The size of an atom is incredibly small and difficult to measure.
原子的大小非常小,难以测量。
Atoms combine to form everything we see around us.
原子结合形成了我们周围看到的一切。
The energy released from splitting an atom can be immense.
分裂一个原子释放的能量可以是巨大的。
Hydrogen is the simplest atom in the periodic table.
氢是元素周期表中最简单的原子。
The model of the atom has evolved over centuries.
原子的模型经过了几个世纪的发展。
An atom is mostly empty space between its nucleus and electrons.
一个原子的核与电子之间大部分是空的。
The atom contains nearly all of its mass in its nucleus.
原子的质量几乎都集中在它的核中。
Quantum mechanics describes the behavior of an atom at the smallest scales.
量子力学描述了原子在最小尺度上的行为。
Every atom of carbon has six protons in its nucleus.
每个碳原子的核内都有六个质子。
The nucleus of an atom is held together by strong nuclear forces.
原子的核由强大的核力结合在一起。
An unstable atom can undergo radioactive decay.
不稳定的原子可能会发生放射性衰变。
The helium atom has two electrons orbiting its nucleus.
氦原子的核外有两个电子。
The periodic table organizes elements by the number of protons in an atom.
元素周期表根据原子中质子的数量排列元素。
Bohr's model explains the energy levels of an atom.
玻尔模型解释了原子的能级。
The atom is electrically neutral when it has the same number of protons and electrons.
当原子有相同数量的质子和电子时,它是电中性的。
The properties of an element are determined by its atom structure.
一个元素的性质由其原子结构决定。
An excited atom can emit light when it returns to its ground state.
当激发态的原子回到基态时,可以发射光。
The charge of an atom is determined by the balance of protons and electrons.
原子的电荷由质子和电子的平衡决定。
Each type of atom has a unique spectral signature.
每种类型的原子都有独特的光谱特征。
The movement of an electron within an atom is influenced by quantum rules.
电子在原子内的运动受量子规则影响。
An atom can form bonds with others to create molecules.
一个原子可以与其他原子结合形成分子。
The energy required to remove an electron from an atom is called ionization energy.
从原子中移除一个电子所需的能量称为电离能。
Metals typically lose electrons to form a positively charged atom.
金属通常失去电子以形成带正电的原子。
Atoms of different elements have varying numbers of protons and neutrons.
不同元素的原子具有不同数量的质子和中子。
An ion is an atom that has gained or lost electrons.
离子是指获得或失去电子的原子。
Atoms can share electrons to form covalent bonds.
原子可以共享电子形成共价键。
Electrons in an atom are arranged in orbitals around the nucleus.
原子中的电子排列在核周围的轨道上。
The behavior of an atom in different states is a key topic in physics.
原子在不同状态下的行为是物理学中的一个关键主题。
The total number of protons and neutrons in an atom determines its atomic mass.
一个原子的质子和中子总数决定了它的原子质量。
She cooked dinner on the stove.
她在炉子上做了晚饭。
Good luck with your exam!
祝你考试好运!
He tried to prove his innocence.
他试图证明自己的清白。
The teacher is explaining the lesson in the classroom.
老师正在教室里讲解课程。
The principality is known for its mountains.
这个公国以山脉闻名。
The loud noise can frighten animals.
巨大的噪音会吓到动物。
I like it, though.
我喜欢它,虽然。
The teacher used a ruler.
老师用了一把尺子。
The geologist discovered a rare mineral in the cave.
地质学家在洞穴中发现了一种罕见的矿物。
He wore a peruke to the ball.
他在舞会上戴了一顶假发。
We employ skilled workers.
我们雇用熟练工人。
The workers mixed the cement.
工人们混合了水泥。
His churlish behavior offended everyone.
他的粗鲁行为冒犯了所有人。
Can you sit here for a moment?
你能在这里坐一会儿吗?
The ruler shows one millimetre.
尺子显示一毫米。
The airplane took off smoothly.
这架 飞机 平稳起飞了。
A cold beer on a hot summer day is truly refreshing.
炎热夏日里的一杯冰啤酒确实令人神清气爽。
Farmers harvested the wheat fields in late summer.
农民们在夏末收割小麦田。
This chair is very durable.
这把椅子非常耐用。
The movie's villain was pure evil.
电影里的反派纯粹是邪恶的。