同位素 (tóngwèisù) · isotope

Measure Word

一种同位素 zhǒng

Meanings

1 isotope

Characters

Examples

HSK 7-9

碳-14是碳的一种放射性同位素。

Tàn - 14 shì tàn de yì zhǒng fàngshèxìng tóngwèisù.

Carbon-14 is a radioactive isotope of carbon.

HSK 7-9

科学家利用同位素来测定化石的年龄。

Kēxuéjiā lìyòng tóngwèisù lái cèdìng huàshí de niánlíng.

Scientists use isotopes to determine the age of fossils.

Tips

memory

同 (same) + 位 (position) + 素 (element). Isotopes occupy the same position on the periodic table but have different masses.

Stroke Order

同 tóng

位 wèi

素 sù

Related Words

同伙 tónghuǒ HSK 7-9 #4,183

accomplice / partner in crime / confederate

同一个 tóngyī gè #4,074

the same / one and the same

同伴 tóngbàn HSK 6 #3,798

companion / partner / fellow

同情 tóngqíng HSK 5 #2,780

to sympathize; sympathy / compassion; to feel for

同学 tóngxué HSK 1 #2,391

classmate / fellow student

同事 tóngshì HSK 3 #1,875

colleague / co-worker

同志 tóngzhì HSK 7-9 #1,483

comrade / like-minded person

同一 tóngyī HSK 5 #5,902

identical; the same / same; unified

同样 tóngyàng HSK 4 #1,012

same / similar / likewise

同时 tóngshí HSK 4 #966

at the same time / simultaneously / moreover