The Lewis Dot Diagram is the Periodic table of elements.Each dot shows the amount of oxygen inside of it. These are called valence electrons. These dots represent the amount of valence electrons inside of the element. Each time one is moved,it will add or remove electrons from the element. Once this is in action the electron removed will move onto a new molecule or element. For Example: The Arrows shown on an element show the movement of an electron.
A rarefaction is a region in a longitudinal wave where the particles are furthest apart. ... The region where the medium is compressed is known as a compression and the region where the medium is spread out is known as a rarefaction.
