Sleep Number King Size 2-3 inch Mattress Bed Foam Topper Pad 7000, i8, i9.
Quick Answer. The three parts of an atom are the protons, neutrons and electrons. Atoms make up the basic building blocks of matter and define the structure of elements. These parts were not officially identified until 1932.
Answer 1/3. In chemistry the fundamental unit is the atom.. Atoms are themselves made up of smaller components called electrons, protons, and neutrons. These components are made up of even smaller components such as quarks.. Ultimately, the fundamental units of string theory (which are called superstrings) may turn out to be the most fundamental unit of everything.