What’s in an Atom? – All matter is composed of atoms. Each individual atom is composed of three parts: electrons, protons, and neutrons. Atoms combine to form elements listed in the Periodic Table
What’s in an Atom?
Protons
Found in the nucleus of the atom
Has a positive (+) electric charge.
Weighs less than one billionth of a gram
Is approximately 2000 times more massive than an electron
Electron
Orbits the nucleus of the atom
Has a negative (-) electric charge
Weighs approximately 1/2000 of a proton
Neutrons
Found in the nucleus of the atom
Has no electrical charge
Weighs approximately [...]
