A chemical element contain only atoms of this element (sometimes different from the mass number because many have isotopes).
Elements are made from one type of atom.
Elements are made from one type of atom.
An element is made up of only one type of atom.
Elements are made from one type of atom.
Elements are matter made of one kind of atom.elements
The word for matter made out of one type of atom is an element. Each element on the periodic table contains only one type of atom.
Elements are made from one type of atom.
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.
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
element
Matter that consists of only one kind of atom is called an element. Elements are fundamental substances that cannot be broken down into simpler substances by ordinary chemical means. Each element is uniquely defined by the number of protons in its atomic nucleus.