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.
An atom is a nucleus with bound electrons, and an isotope is a way to distinguish between different types of nuclei. Here's a picture to show you what I mean. source I'll assume you've heard of electrons, protons, and neutrons.