9 sentences

1. 电子在原子轨道中运动。

   diàn​zǐ zài yuán​zǐ guǐ​dào zhōng yùn​dòng.

   Electrons move within atomic orbitals.

   Source: Dong Chinese Dictionary

2. 我们分裂了原子。

   wǒ​men fēn​liè le yuán​zǐ.

   We split the atom.

   Source: OpenSubtitles

3. 原子由原子核和电子组成。

   yuán​zǐ yóu yuán​zǐ​hé hé diàn​zǐ zǔ​chéng.

   Atoms are composed of a nucleus and electrons.

   Source: Dong Chinese Dictionary

4. 原子的直径通常用埃来表示。

   yuán​zǐ de zhí​jìng tōng​cháng yòng āi lái biǎo​shì.

   Atomic diameters are usually expressed in angstroms.

   Source: Dong Chinese Dictionary

5. 原子的质量几乎全部集中在核上。

   yuán​zǐ de zhì​liàng jī​hū quán​bù jí​zhōng zài hé shàng.

   Almost all the mass of an atom is concentrated in the nucleus.

   Source: Dong Chinese Dictionary

6. 碳原子在有机分子中通常呈四价。

   tàn yuán​zǐ zài yǒu​jī fēn​zǐ zhōng tōng​cháng chéng sì​jià.

   Carbon atoms are usually tetravalent in organic molecules.

   Source: Dong Chinese Dictionary

7. 丙基是含有三个碳原子的有机官能团。

   bǐng jī shì hán​yǒu sān gè tàn yuán​zǐ de yǒu​jī guān​néng tuán.

   Propyl is an organic functional group containing three carbon atoms.

   Source: Dong Chinese Dictionary

8. 每个分子由两个氢原子和一个氧原子组成。

   měi gè fēn​zǐ yóu liǎng gè qīng​yuán​zǐ hé yī gè yǎng yuán​zǐ zǔ​chéng.

   Each molecule is composed of two hydrogen atoms and one oxygen atom.

   Source: Dong Chinese Dictionary

9. 每个水分子由两个氢原子和一个氧原子组成。

   měi gè shuǐ fēn​zǐ yóu liǎng gè qīng​yuán​zǐ hé yī gè yǎng yuán​zǐ zǔ​chéng.

   Each water molecule is composed of two hydrogen atoms and one oxygen atom.

   Source: Dong Chinese Dictionary