Building a new reasonable atomic theory.

Context: This article is an initiation to build reasonable atomic/molecular theory to study chemicals utilized in different sectors of science including chemistry, biology, and medicine as well as the material science. It is all about opening new pathways and method-developments which need to be simple, reasonable, rational, and applicable to all chemicals and be closely consistent with the experimental data and real world. Hence, the success may simplify the process and eliminate the need to sophisticated software and heavy computations. The article first reviews the current classical atomic theory, and discusses some of its flaws. Then, it suggests a more reasonable approach through several presented simple formulas which would generate results consistent with the experimental data. Finally, the article goes through some examples, cases, and details to present the differences between the new suggested approach and the current classical atomic theory. Building new pathways would help not only with the ongoing scientific achievements but it would also help in classrooms and the education of next future generations.

Methods: All of the calculations and figures presented in this article are done by simple calculators and the use of Microsoft software including excel spreadsheet. The presented atomic theory does not need any sophisticated software and/or heavy computations. If desired, one can also use a simple personal programing technique to generate the desired results. So the key is in better understanding of the subjects and not in development of complicated computational tools and theoretical techniques. This article did not use any of the usual ab initio or DFT, or basis sets, or force field molecular-dynamics techniques. The focus of this article is mainly atomic theory which will expand to molecular theory in future articles.