This is not a question or a sentance for that mater. Please restructure. Hydrogen is the smallest pure element. Smallest main structure component of an element is the electron. Hope this helped.
compound
This is called a compound.
An atom
An atom.
The Atom is the smallest particle of an element that has characteristics of that element. The Atom consists of a certain amount of electrons, protons and usually neutrons. The amount of each of these sub-atomic particles is what makes an element into a Atom.
an atom
an atom is the smallest unit of an element, but an element is a pure substance
The smallest unit of an element is the atom. There are smaller components of atoms, but they no longer hold the properties of the element that belong to an atom of that element. There are smaller things called quarks but they are not very well understood. Of the neutron, proton and electron, the electron is by far the smallest.
The smallest identifiable unit of an element that retains the properties of the element is an atom.
Compound
compound
The atom is the smallest unit of an element that has all the properties of the element.
a compound
This is called a compound.
This smallest unit is the atom.
it is mixtures not compounds
it is mixtures not compounds