Periodic Table Research Paper : Madison

Page 13 of The Disappearing Spoon ties into learning goal 22. Learning goal 22 ties into this page because the page discusses about how the periodic table is arranged by the different types of elements such as metals, metalloids, and nonmetals. On the western side and the middle part of the periodic table, you will find the metals which make up seventy five percent of the periodic table. On the eastern side, you will find the gases or

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.

The purpose of the lab was to mimic the way Mendeleev placed the elements on the periodic table. Mendeleev was a Russian chemist who produced the first orderly periodic table. Frist, the way the periodic table has been classed alongside the atomic sum and the elements with related properties. Second, the objectives are observeing the physical states of common elements, and the progression of the periodic table, lastly speculate by determining the unknown elements established on the observed progression. As a group we tried to find out where the unknown elements should be placed. Finnly, the information that was given to help us with our process was the state, density, hardness, conductivity, melting point, and color.

-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

The periodic table is a table that categorises and displays all of the chemical elements. It is made up of groups, periods and blocks. A group (also referred to as a family) are the columns of elements, there are 8 groups. The elements in each family have similar but not identical properties and they all have the same number of outer electrons. E.g. lithium (Li), sodium (Na), potassium (K) are all soft, white, shiny metals because they are all members of group 1. A period is each horizontal row of elements, there are 7 periods. In a period, the elements are not alike in properties, the first element in a period is always an extremely active solid, and the last element in a period is always an inactive gas. Properties change greatly across a given row. Each new period represents the next shell which electrons fill. A block is a region of the periodic, there are 4 blocks: S, D, P and F.

The Periodic Table a) The periodic table is a list of all the elements. As well one can find some information about the element ie the atomic number, relative atomic mass and the symbol of the element and sometimes the name of the element. b) The elements are not randomly positioned in the periodic table, they are positioned according to their proton number (atomic number) starting from the element having the least number of protons and ending with the element having the most (from left to right). They are also arranged according to their physical properties.

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 construction of the Periodic Table of Elements was prior to the discovery of the individual elements. Elements such as silver, gold, tin, copper, lead and mercury have been known for centuries. In 1649, the first scientific discovery of an element was made by Hennig Brand when he discovered phosphorous. Prior to Brand’s discovery, chemists had acquired an immense body of understanding concerning the properties of elements and their compounds for the next 200 years.

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.

Who was Demetri Mendeleev and what is his contribution? 14. What is the periodic table? 15. What are groups/families?

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.

It is set up so it is easily read and understood. In the novel, the periodic table is referred to as the Periodic Pier. Alice was thinking of the atoms she had seen before and was now seeing them again. “Maybe those are the same atoms which I am seeing differently. I suppose that instead of the Periodic Pier, that would make this the Periodic Table (Gilmore 118).” As Alice goes through Quantumland and learns of all the elements, and atomic mass it is easy to relate to. We have spent great amounts of time this year, and last year learning all about the periodic table and the elements involved with

This chapter talks mainly about the importance of the periodic table and discusses some of the stories behind some unique and important elements, along with interesting scientific discoveries. Chapter 1 really intrigued me, and I wasn’t expecting that. Even after I read the back of the book summary, I still reluctantly started reading. However, I don’t regret it now because this book is pretty fascinating.

Rhenium, pronounced REE-nee-em, was the last naturally occurring element to be discovered. It was found by the German chemists Ida Tacke-Noddack, Walter Noddack and Otto Carl Berg in the year of 1925 (Rhenium - Element Information). They named the element after the Rhine River river in Germany since that was the country of which they were from. Rhenium does not have any other aliases which is why its element symbol of “Re” is not very different from its actual name. It holds the atomic number of 75 and is located in group seven and period six on the periodic table (Gagnon). With it being a special element and a metal, rhenium is a member of the transition metal group along with other elements such as tungsten and platinum. The transition metals

Chemistry is by far one of the most important sciences to humans, as it tells how the world around us is composed and tells us about why things act the way they do. Despite this many people find Chemistry to be one of the most confusing and hardest sciences to learn, and one aspect of which that may seem to be the most daunting is the Periodic Table. But in the national bestselling novel The Disappearing Spoon by Sam Kean, he uses a variety of topics to explain the organization, properties and other concepts related to the Periodic Table. In the chapter Elements in Times of War, Kean refers to historical events throughout history to show how the Periodic Table has influenced the way mankind has waged war. Through his use of historical anecdotes,