dictionary.pt
atom
nounmasculinetechnicalcommon/ˈatomu/á·to·mo
Definition
1The smallest particle of a chemical element that retains the properties of that element, composed of a nucleus and electrons.
Usage examples
“A carbon atom has six protons.”
“Nuclear fission splits the atom's nucleus.”
Common combinations
carbon atomatomic nucleusatomic structureatom model
Idiomatic expressions
- to split the atom (to achieve nuclear fission)