Pure substance that consists of the base particle and atomic number is the number of protons in the nucleus of the element [1] Examples of the elements carbon, oxygen, such as the familiar aluminum, iron, copper, gold, mercury and lead.
Compound consisting of atomic particles. The number of protons in the nucleus [1] For example, the familiar elements such as carbon, oxygen, aluminum, steel, copper, gold, mercury and lead.
Pure substance which is composed of elementary particles atomic number. The number of protons in the nucleus of the elements that 1 []. Familiar examples elements such as carbon, oxygen, aluminum, iron, copper, gold, mercury and lead.