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Atomic mass unit

Atomic mass unit

Atomic mass unit The atomic mass unit is a term used to describe the mass of a neutral atom of a nuclide. It is usually expressed in terms of the physical scale of atomic masses, that is, in atomic mass units (amu). It can also be used as a unit of mass; one atomic...
Element

Element

Element Element is a term used to describe a substance that cannot be broken down into two or more new substances by chemical or physical processes. See also  Atomic Number, Proton and Atomic Mass, ECO-FASHION-DENIM AND DIAGRAMS DICTIONARIES...
Isotopes

Isotopes

Isotopes An Isotopes is a term used to describe atoms of a given chemical element having the same atomic number but different atomic mass numbers. Isotopes have the same number of protons. Since the sum of protons + neutrons= Atomic Number, the difference is the...
Neutron

Neutron

Neutron An electrically neutral subatomic particle with a mass approximately equal to one atomic mass unit; generally found within an atomic nucleus. See Atom and Proton. ECO-FASHION-DENIM AND DIAGRAMS DICTIONARIES...