You think probable to an atom.
The atom cannot be broken by chemical methods.
an element is a substance that cannot be broken down into a simpler form by chemical means
Element
If an unknown substance cannot be broken down into simpler substances it is made of one kind of atom and an element.
An Element ... A substance that cannot be broken down into simpler substances by chemical means.
An example of a material that cannot be broken down into simpler substances is an element like gold or oxygen. Elements are composed of one type of atom and cannot be chemically broken down into simpler substances through ordinary chemical reactions.
An element is a substance that cannot be broken down into simpler substances by chemical means. Elements are the building blocks of all matter and are represented by unique chemical symbols on the periodic table. Examples of elements include hydrogen (H), oxygen (O), and iron (Fe).
An element cannot be broken down into a simpler substance by chemical means.
Atoms can be broken down, so it is a quark or a lepton.
A substance that cannot be broken down is a pure substance
An element.
A pure substance that cannot be broken down is an Element.