0 a substance that cannot be broken down into any simpler chemical substances and is made of atoms all of the same type -- pierwiastek (chemiczny)
Sodium bromide can be used as a source of the chemical element bromine.
Put another way, a chemical element can not be transformed into other chemical elements by chemical processes.
Indeed, the nuclear reactions in stars produce every naturally occurring chemical element.
The second sentence, a use example, is a statement about the chemical element copper and not the word itself.
Each type of atom corresponds to a specific chemical element.
A helium atom is an atom of the chemical element helium.
Each point plotted on the graph thus represents the nuclide of a real or hypothetical chemical element.
The segmented tables permit easier examination of a particular chemical element with much less scrolling.
