Elemental matter.
A substance that is composed of only one kind of matter is called an element. The smallest particle of an element is called an atom.
This is a chemical element.
Material made up of only one kind of matter is called an Element
Matter with only one particular kind of atom is known as an element. These atoms can either be located individually or combined into larger units. An example of this would be the notion that carbon is an element, because at it's pure substance state it's composed of only carbon atoms.
Element
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An element.
Elements are matter made of one kind of atom.elements
A chemical element contain only atoms of this element (sometimes different from the mass number because many have isotopes).
Something that is only one type of atom is an element. There is no name applying to both atom and compound, other than "a pure substance".
an element
If there is only one kind of atom involved, it is called an element. Elemental gold only has gold atoms, elemental oxygen only has oxygen atoms, etc. Pure water is not an element because oxygen and hydrogen atoms are involved.