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The ratio of the massA measure of the force required to impart unit acceleration to an object; mass is proportional to chemical amount, which represents the quantity of matter in an object. of a sample of a material to its volume.
A bond in which the electronA negatively charged, sub-atomic particle with charge of 1.602 x 10-19 coulombs and mass of9.109 x 1023 kilograms; electrons have both wave and particle properties; electrons occupy most of the volume of an atom but represent only a tiny fraction of an atom's mass.densityThe ratio of the mass of a sample of a material to its volume. is symmetrically distributed around the line connecting two atomic nuclei; can be formed by the overlap of an s orbitalA mathematically defined region of electron density around one or more atoms; a wave function that defines the properties of a particular electron in an atom or molecule. on one atom with any kind of orbital on another atom or by two p orbitals pointing toward each other.