Titanium reacts with iodine to form titanium(III) iodide,

Chapter 2: The Quantum­Mechanical Model of an Atom  Most of the atom’s volume is occupied by electrons  The size of an atom depends on its electrons  An atom’s electrons determine many of its chemical and physical properties  Quantum particle like electrons can be in two different states at the same time  Quantum­mechanical model explains the strange behavior of electrons, describes electrons as they exist within atoms, and determine the chemical and physical properties of elements The Nature of Light  Light is found to have many characteristics in common with electrons such as wave­ particle duality of light The Wave Nature of Light  Light is electromagnetic radiation, which is a type of energy embodied in oscil