History Of The Periodic Table Of Elements

The elements were organized by Dimitri Mendeleév. He organized them by properties (columns), groups (horizontal), and atomic number (the number of protons and electrons). This became known as the Periodic Table. And currently there are 118 elements. He also found gaps in which elements that were yet to be discovered were to go, three of these unknown elements were found and identified in Mendeleév's lifetime. The elements today are used in everything and 75% of the 118 elements are metal.

According to Carolyn Ruth, author of “Where Do Chemical Elements Come From,” chemical elements came from the explosion of stars, also known as supernovas. In her article, Carolyn states that a newborn star is mainly composed of the first element on the periodic table, Hydrogen. Due to the high pressure within the star, a fusion process begins that fuses two protons and two neutrons together to form the second element, Helium. These fusion processes continue to form elements that weigh less than Iron. Once the star creates all elements up to Iron, the star eventually collapses and explodes. One article that agrees with Carolyn’s theory is “The Origin of the Elements and the Life of A Star”. According to this article, stars produce nuclear reactions

-Dmitri Mendeleev- first periodic table, organized 63 known elements according to properties, organized into rows and columns and wrote name, mass, and chemical properties on each

  Then in 1661, Irish chemist Robert Boyle supported the philosophers’ theory of how chemical elements are made up of the simplest matter, backing the theory of how matter makes up all life and is the smallest living thing (Doc. 1). But a bombshell happened in 1803 when John Dalton backed up all three theories by discovering that atoms make up all matter, and chemical compounds are made of atoms (OI).

Chapter 12 of Kean’s bestseller focuses on how politics had a major influence on the development of the periodic table. The majority of the chapter takes place during the mid-1900s and therefore, as one might

The second main contributor toward the atomic structure was John Dalton. John Dalton was the one who brought the atomic theory talk back into play after 2000 years from Democritus. Dalton become fond of the atomic structure following his love from meteorology. He claimed that the forces of repulsion that caused pressure only were between the same atoms and the atoms inside a mixture had different weights and complexity. He then decided to calculate the atomic weights by determining the percentages of each composition in a compound. This allowed him to be able to

The book “The Periodic Table” by Primo Levi is undoubtedly a masterpiece. It showcases the enthusiasm, the level of dedication, and passion successful chemists such as Primo Levi himself had for the field of their expertise. The way Primo Levi has related the troublesome times and events he had to face in prospect with the elements of the periodic table is laudable. Primo Levi is surely an inspiration and a perfect example of prodigy and passion. Despite the challenges and the hardships inflicted on him by the bigoted group of Germens, he still managed to emerge as an exceptional chemist and an author who made great contributions to the modern chemistry as we now know it.

The German alchemist, Albertus Magnus from the 13th century, is the man who is known for first identifying Arsenic. Being number 33 on the periodic table, arsenic falls inside the metalloid line because of its characteristics. According to the Green Facts website “Arsenic is a naturally occurring element that can be found in the Earth crust.” (Arsenic n.d.) It

Medieval alchemists “invented new ways to isolate, purify, and concentrate substances” (Challenging Limits). The alchemists established the value of analysis, which was fundamental to what became chemistry. First, it was Antonie de Lavoisier who used the techniques to move into the modern age of chemistry. He started by isolating elements and identifying the basic building blocks of nature. Even Humphry Davy was interested in learning the basic building blocks of nature. Until, in 1898, a new element was discovered that drew many questions to scientists. Radium had glowed in the dark and when photographed seemed to be giving off its own energy. At the time, no one knew that the radium was a deadly poison, which harmed human tissue. However, the effect on photographic plates that radium gave allowed humans to discover x-ray scans. These x-ray scans allow us to diagnose and treat diseases. With all of these elements taken into consideration, scientist began to ask themselves, “what are the elements made

The History of the Periodic Table of elements is vast, and filled with interesting facts that not many average people would know about, these four scientists have had all contributed to the table in some way, and lead it to its current state, here is what they have

Stanislao Cannizzaro was born on July 13, 1826. When he was younger, he showed great skills in mathematics. He later became an assistant to Rafaelle Piria. Cannizzaro saw his dedication to his work that Piria influenced him to transform his study to chemistry. Cannizzaro later determined the different atomic weights. Dmitri Ivanovich Mendeleev always had a love for history, math, and physics. He attended the University of St. Petersburg where he formed the ideas of chemical compounds. Mendeleev found out that you could simplify the periodic table by separating them into different groups. He arranged them by the atomic weights and then later realized they had similar chemical properties. He had also given predictions of future elements and their properties.

The elements are positioned on the periodic table based on their atomic number. Atomic number, or the number of protons in the nucleus, is what distinguishes each element on the chart. In the original design of the periodic table, elements were organized based on their atomic mass, however it was later discovered that placing the elements based on atomic number made more sense, as it created a pattern and allowed it to be known what elements are yet to be discovered. Generally, however, the atomic mass increases with the atomic number. Hydrogen is probably the most simple example. Hydrogen (H) has only one proton in its nucleus, so it’s atomic number is one. Therefore, it is the very first element on the periodic chart.

Mercury, discovered at 700 BC. This was known to the Ancient chinese and Ancient indians before 2000 BC and found in egyptian tombs from 1500BC. Nickel was discovered at 1751BC. After Iron, Nickel was believed to be the most element in the earth. It is used for the production of corrosion resistant alloys. Uranium was discovered at 1789, It has been used to color glass and ceramics. Today it is used for the production of nuclear fuel and weapons. 1791 was when titanium was discovered. Although it was discovered at this time, there wasn’t a use for it until 1940. It was used for

Throughout history the periodic table of elements has been influenced and amended by multiple scientists. These scientists include Johann Dobereiner, A.E Beguyer de Chancourtois, John Newlands, and Glenn Seaborg. As well as Dmitri Ivanovich Mendeleev and Lothar Meyer the creators of the periodic table. There are many ways that the periodic table of elements was set out. For example the table can be organized using patterns between atomic numbers, electronegativity, ionization energy, structure (gas or solid) valence electrons and electron configuration (shells) as seen in the modern day periodic table.

The first is Potassium. Potassium was first discovered and isolated by Sir Humphrey Davy, a Cornish chemist and inventor, in 1807. Potassium is highly reactive, but Davy isolated the element through a process what’s called electrolysis, a process by which an electric current is passed through the element to cause chemical change within the element. Potassium could be extracted through minerals such as carnalite, langbeinite, and polyhalite minerals. Potassium is also found in the Earth’s crust, and makes up around 1.5 to 2% of the Earth’s crust. Potassium also can’t be found in nature as a free element. Potassium is atomic number 19 in the periodic table and is symbolized as the letter “K” in the periodic table. The element is in Group 1, Period 4 on the periodic table. The element is an alkali metal and has somewhat of silver color to the element. The structure of the element has a cubic shape at room temperature and has a density of 0.862 g/cm