The element cesium is an element like no other. It has many characteristics that separate it from many of the other elements that most people know. Cesium also has important uses for our society and we can benefit from it a lot. Cesiums story starts way back in 1860 Heidelberg Germany, with two German chemists by the names of Robert Bunsun and Gustav Robert Kirchoff. A year before they discovered the element cesium, they developed a spectroscope. This tool allowed them to see the atomic spectra. So, while they were analyzing some spa mineral water residue using the Spectroscope. They spotted blue lines from the emissions spectra. These lines didn't match up with any other known element. So, after realizing that they discovered a new element, they decided to name it cesium. The chemists decided on naming it that because the latin word caesius means sky blue, and the lines that they saw were a similar sky blue color. (webelements.com). The Elements physical attributes are perhaps the most interesting parts of the element. Its electron configuration is [Xe] 6s^1 and it has …show more content…
The natural isotope of Cesium is ^133Cs and the natural abundance of it is 100%. This is the only stable isotope of cesium. There are 36 other isotopes that are unstable. Another trait that makes Cesium so interesting is that it will react vigorously with water. It reacts so rapidly that it will shatter glass if enclosed in it and can be very explosive. Its reactivity with air is also vigorous. Because of this, scientist hold cesium in vacuums to it. Without the vacuum, the cesium and air would form CsO2, an orange superoxide. Cesium doesn’t react well with many chemical properties and that includes halogens, the halogens react vigorously with cesium. Next, cesium will dissolve in Acids rapidly if mixed, and last, cesium reacts rapidly with bases. it reacts in the same way cesium reacts with water.
According to the observations recorded, the metal ion Cesium is present in the “unknown samples”. Unknown sample number five produced a violet color when placed in the flame. Unknown sample number four produced an orange color when placed in the flame. Unknown sample number one produced a violet color when placed in the flame. This evidence supports the claim that the metal ion Cesium is present in the unknown samples according to table two, the Flame Spectra of the Alkali and Alkaline-Earth Elements.
Element 115 was found when a meteor hit earth and group 935 found it. Element 115 was extremely unstable element. It could power the Bell; Element 115 could reanimate dead cells or bring a dead person back to life. Element 115 is the reason we have Zombies in the first place.
Lucy Treuting Mrs. Menesses English 1 Honors 21 April 2023 The Creation of the Atomic Bomb The Atomic Bomb independently was one of the most difficult and legendary weapons in U.S. history. It was dreamed about for centuries, but these exceptional scientists transformed history anew with their brilliant minds and courageous perseverance.
Copper is a chemical element with the symbol Cu and atomic number twenty-nine. It is also a solid at room temperature. Copper was most likely the first element ever manipulated by humans. In fact, humans discovered copper during the Paleolithic era. Copper was also very important during the copper and bronze age.
In this reaction NaOH was added to the Cu(NO3)2. The solution developed a precipitate which made the clear solution become cloudy and uniform in color (blue). The physical color change was demonstrated through the formation of the precipitate. The third step was the formation of CuO. In this reaction, the Cu(OH)2 product was heated on a hot plate and stirred continuously until the solution became colorless and a dark precipitate formed.
New elements continue to be added to the periodic table as science knowledge increases. In January of 2016, a news article reported elements with atomic numbers 113, 115, 117 and 118 as approved by the International Union of Pure and Applied Chemistry. These elements completed the seventh row of the periodic table. Isdell shows the concept that chemistry continues to expand when Julie names an element in the Land of Science that did not previously exist, Wendelium with the atomic symbol Wd (Isdell, 442).
This finding made the world curious and even now almost a century later it is still one of the most talked about
The Manhattan Project was started because a group of German scientists had split a uranium atom and discovered how much energy was contained in an atom, enough energy to power a bomb ("The Manhattan Project").
Yale scientists Dr. Allan C. Steere and Dr. Stephen E. Malawista are credited as being the first to recognize, name, characterize,
Lucy Treuting Mrs. Menesses English 1 Honors 21 April 2023 The Creation of the Atomic Bomb The Atomic Bomb was one of the most difficult and legendary weapons in U.S. history. It was dreamed about for centuries, but these exceptional scientists transformed history anew with their brilliant minds and courageous perseverance.
In 1939, two German scientist were successful at splitting an atom and this meant that they may have just developed an atomic bomb. With the scare of Germany being able to make an atomic bomb, Szilard found one of his previous
The first periodic table was first introduced to us in 1869 by a Russian scientist named Dmitri Mendeleev. Mendeleev studied chemistry at the University of St. Petersburg. Mendeleev’s table had many differences from the one we use today. His periodic table was in order by atomic mass.
Marie Curie coined the term radioactivity from Henri Becquerel. Her experiments included isolating the uranium and found that it was not as radioactive when it was uranium, and there had to be other radioactive elements in the pitchblende. (a mix of ores) The discovery of more new elements, even got Marie’s husband excited and her husband Pierre put his own research aside to help Marie. By 1898 they had discovered two elements which were Polonium and Radium.
Nickel I Axel Fredrik Cronstedt am the discover of Nickel. Now first I have mistaken Nickel as a copper mineral when our miners were looking for copper in 1751. “The name Nickel is the shortened for the German 'kupfernickel' meaning either devil's copper or St. Nicholas's copper” (http://www.rsc.org/periodic-table/element/28/nickel). So now that Nickel has been discovered it has been said that it is an “tale of mistaken identity and superstition” (https://en.wikipedia.org/wiki/Nickel).
Finally, both of the British Chemists found other elements part of the Noble Gas Family. “The British Chemists used a powerful machine that cooled and liquefied air to obtain Krypton.” The Chemists repeated the process of the obtanation of Krypton, until an even denser substance separated out, which was the modern name Xenon. “Ramsey believed that Xenon can only be available at the Earth's atmosphere