Compounds are composed of elements. Elements are composed of sub-atomic particles (electrons, protons, and neutrons).
Atoms
When two or more particles of a different basic substance come together, they form a compound. This results in a unique chemical structure that is different from the individual particles that make it up.
democritus then john Dalton
All elements are composed of extremely small particles called atoms. Atoms are composed of protons, neutrons, and electrons.
Elements are composed of only one type of atom. There are about 90 or so naturally occurring elements.
You think probable to atoms.
The term for a molecule composed of two or more different elements is called a compound.
yes
Although he supposed that the elements were ultimately composed of various particles, he didn't know what those particles were.
A compound is composed of two or more different elements.
atoms :) i know, i hate focus questions too :/