Fundamental Concepts of the Atom

We will examine the structure of atoms in much greater detail in Chapter 6. 

Protons and neutrons are themselves made up of even smaller particles, known as quarks. 

We generally depict the charges in units of the electron charge, so that the charge of an electron is written as 1-and that of a proton is written as 1+. 

The atomic mass unit is also referred to as a dalton and is sometimes abbreviated as u. 

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