B1
atom vs molecule
The difference
| Word | Meaning | Goes with | Example |
|---|---|---|---|
| atomnoun/ˈæt.əm/ | Meaning The smallest part of a chemical element, too small to see. | Goes with — | Example Everything around us is made of tiny atoms. |
| moleculenoun/ˈmɑː.lɪ.kjuːl/ | Meaning the smallest unit of a substance, made of two or more atoms joined together | Goes with water molecule | Example A water molecule is made of two hydrogen atoms and one oxygen atom. |
Which word fits?
1 of 7Pick the word for the gap. Its form may change in the sentence.
The new microscope can see a single .