1 Plaques and Frames revealing the family crest for the surname Trump. 2  Surname Histories for the name Trump. 3  Symbolism showing the Trump family crest. 4  Travel Mugs with the coat of arms for the name Trump.
atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element. substance - the real physical matter of which a person or thing consists; DNA is the substance of our genes.
(How do atoms form?) What is the biggest atom? The smallest atom? If by biggest and smallest, you mean mass (which is a measure of how much matter is there), then the smallest is the hydrogen atom with one proton and one electron. Since electrons are about 2000 times less massive than protons (and neutrons), then the mass of an atom is mostly from the protons and neutrons.