Science
How do atoms work?
An atom is made of a tiny, dense nucleus of protons and neutrons, surrounded by even tinier electrons. The positive nucleus and negative electrons attract, holding the atom together. Atoms join by sharing or trading electrons, which is how all matter forms.
See it in motion.
Watch a 2-minute animated lesson that shows exactly how atoms works.
Step by step
- 1A nucleus of protons and neutrons sits at the center.
- 2Electrons occupy the space around the nucleus.
- 3Opposite charges hold the atom together.
- 4Atoms bond by sharing or transferring electrons.
Frequently asked questions
- How do atoms work?
- A positive nucleus of protons and neutrons attracts surrounding negative electrons, holding the atom together.
- What are atoms made of?
- Protons and neutrons in a central nucleus, with electrons moving around it.
- How do atoms form everything?
- They bond by sharing or trading electrons, building the molecules that make up all matter.