0.001 would be the smallest.
Good Luck! :)
SEAgel (Safe Emulsion Agar gel) is one of a class of high-tech foam materials known as aerogels.
Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.