History of the periodic table

The human body is mainly made up of four elemental components: oxygen (65%), Carbon (18%), Hydrogen (10%), and Nitrogen (3%). It is also composed of about 28 other elements including, Potassium, Sodium, and Calcium. Each plays a major role on the daily functions of the human body. Oxygen accounts for roughly about two-thirds of the mass of the human body and is use in cell respiration. Carbon is part of the molecular structure in certain fats, proteins, and carbohydrates; which are essential…

taking a harder class because of the English level they can handle. The argument is unfair for those who excel in mathematical and scientific ability but lack of English proficiency. Math and science languages are universal. Most elements in the periodic table are written and pronounced almost in the same grammar form, for example the element Hydrogen, which in Spanish is “Hidrógeno” or Sodium whose translation in Spanish…

understanding the natural situation basing on real proof.The history of natural sciences is characterised with astonishing achievements and discoveries by famous scientists for example Isaac Newton, Robert Boyle, Archimedes, Galileo Galilei and many others and because of them, we are able to know the fundamental laws of physics, we are able to know what’s always taking place in my body, we are able to know the 92 elements that make up a periodic…

greatly known leaders from our history were just like us. They were young people that one day believed they could create change, and dared to create what they wished to see. The problem with youth now a days, is that they do not think they can make a…

article, "CDC Grand Rounds: Preventing Suicide Through a Comprehensive Public Health Approach," suicide is a manifestation of outside factors instead of solely being affected by mental health (894). It is manifested from multiple factors such as family history, environmental influences, along with the person's mental health. Specifically mentioned in this article is that increasing awareness of suicide is crucial in suicide prevention because it decreases the negative connotation given to…

Throughout modern history, McKim, Mead, and White’s Boston Public Library has existed as a recognizable architectural landmark and therefore, as an integral part of the Boston cityscape. However, the library is just one of many buildings from the era in the area and is by no means the most significant to the nation’s history, forcing the question of why the building is so very iconic. The justification can be found when the structure is dissected into a handful of key spaces. Through its innate…

Perplexing Coding This picture symbolizes my AP Computer Science class because in this class, I had to come up with different types of codes, like the one shown, to write and format. I chose this image because once I entered this class I knew that coding was exactly what it appeared to be. Complicated. Most of my class was filled with seniors so the first few months I struggled to learn the material that they already knew. When Mr. Ellich asked questions like what does “string” mean in coding,…

law or principle of science, its the very foundation of all that science includes! The laws and principles of science were able to be tested because of this theory! We are going over everything about the atomic theory including its beginning, the history of the atomic theory, and why it is so important in the first place. We will also go over the many models produced by scientists over the years and why they were right or wrong and then our final result. The Atomic theory went through a number…

Fluoridation: Creating Better Smiles Everyday “Water Fluoridation has changed the smiles of Americans for 57 years” –Scott M. Presson, DDS, MPH, and Chief of the Program Services Branch in the division of Oral Health at the Center for Dieses Control and Prevention (Molony). Water fluoridation is defined as; “to add fluoride to drinking water to reduce tooth decay” (Fallon). Most communities have fluoridated drinking water. Almost all water contains some naturally occurring fluoride, but at…

Tiny particles react with each other every second to sustain our daily lives. These particles are called atoms, and they are the most basic and indivisible units of matter. They retain their identity through chemical reactions, yet they are so small that even the strongest microscope cannot detect them. The reasoning behind atomic reactions intrigued many intellectuals. To understand more about this concept, they had to comprehend the compositions of these particles. Although the scientist and…