I'm doing a review sheet and i can't describe how molecules are different than atoms.

how to describe how molecules are different than atoms?

i'd appreciate it if someone would answer my question.

Atoms can join together to make molecules. A single atom is made from protons, neutrons and electrons. A molecule is a group of atoms bonded together. Atoms is some thing which can't be split 
Molecule can be divided into many atoms. I know you dont need this but hey it may help someone else. ooops i put it in the wrong section

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.