Comparison Of Bohr And Lewis Dot Model

A scientific model is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly. Periodicity is the quality or character of being periodic. The term periodic reflects the facts that the elements show patterns in their chemical properties in certain regular intervals. Two of the more common models include Bohr Model and Lewis Dot Model. Models play a very important role in the modern world i.e., making predictions and telling us new information. The Periodic Table of Elements is a model because it can show us many things, valence, ionization, mass, and a number of different things but more importantly it can help us in knowing how things will react with each other.
His table was solely based on his personal predictions but was more accurate than scientists who were also trying to predict the elements at the time. He arranged the elements by atomic mass in one row. Over time, he came to realize that some elements from one to another would make a sudden jump from one characteristic/property to another. He then got the idea of putting elements with similar characteristics in a column called a family or group also leaving spaces for unknown elements at the time and predicting their atomic weight. (Scientific American) From side to side is the rows. Every row starting from the left and moving to the right, in order, include Alkali, Alkali Earth,Transition, Metalloids, Halogens and Noble Gases. In other words, the table from left to right goes from most reactive to least