How can one human mind organize and memorize over 100 elements? In 1869, Dmitri Mendeleev, a Russian chemist and inventor, was credited with creating and publishing the Periodic table. The Periodic table is an arrangement of the chemical elements discovered on earth. These elements are organized by their atomic number and similarities between chemical properties. The Periodic table holds 118 elements which can be broken down into smaller classifications, groups (vertical), periods (horizontal) and blocks (adjacent). In this paper, we will zoom in one unbelievable element Osmium, which is usually lost in the mix.
Osmium was discovered in 1803 by Smithson Tennant. This element was found when Tennant used platinum to dilute aqua regia. He noticed
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However, it does not hold the greatest atomic mass. Along with a symbol of Os, osmium has an atomic mass of 190.23, which can be found by adding the number of protons and neutrons. Nevertheless, the number of protons can be found by looking to the atomic number for they will be the same. Because osmium has an atomic number of 76, it also has 76 protons. Unless an ion, the number of protons and electrons are the same. In other words, osmium has 76 positive charges atoms (protons), 76 negatively charged atoms (electrons) and 114 neutral charged atom (neutrons). This element can be found in period 6, meaning it has 6 orbitals for its electrons. In addition, this element lies with group 8, causing it to have the same number of valence electrons,electrons in the outer orbital, as other elements in group 8. Based on characteristics and the placement of this element on the periodic table, osmium can be classified as a transitional …show more content…
For example, osmium can irritate the respiratory system, the skin, and the eyes. Osmium is rarely used in its pure form, meaning that it can be highly toxic. Effects of inhaling this element include, burning sensation, coughing, severe headaches, wheezing, sudden shortness of breath, and visual disturbances. As a result of contact with the skin, you are at risk of redness, skin burns, skin discoloration and blisters. Unfortunately, exposure to high concentrations may result in damage to kidneys or even death. Though this chemical is able to do harm, it can be and has been used in a beneficial way. For example, Osmium has also played a key role in various aspects of the development of lightbulb technology.Alloys of osmium and platinum are used to make specialized laboratory equipment. Alloys can be made by melting or mixing two or more metals. Lastly, it can be used as a catalyst, a substance used to speed up or slow down a chemical reaction.
In summarization,osmium ,Os, is a chemical element based on the periodic table. This element was discovered in the mixture of a mixture of nitric and hydrochloric acids. It has a atomic number of 76 and an atomic mass of 190.23. This is the most rarest of 118 chemical elements. Though this element is overlooked, this element has great
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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.
Scientists at the Join Institute of Nuclear Research in Dubna, Russia and scientists at the Lawrence Livermore National Laboratory in California discovered element 117 or, tennessine, in 2010. With an atomic mass/weight of 294 making it the second heaviest element known to mankind behind element 118 or, Oganesson. Before being named tennessine by the International Union of Pure and Applied Chemistry (IUPAC) in 2016, tennessine had the place holder name of ununseptium, which means one-one-seven in Latin. Tennessine was created by fusing berkelium-249 atoms with calcium ions until tennessine atoms formed. Since tennessine is radioactive, it has zero stable isotopes. Tennessine’s most stable isotope, however, is tennessine, which has a half-life of about 80 milliseconds. Only six atoms of tennessine have been artificially created to this day.
Californium was first made in 1950 at Berkeley, California, by a team consisting of Stanley Thompson, Kenneth Street Jr., Albert Grierson, and Glenn Seaborg. They made it by firing helium nuclei at curium-242. The process yielded the isotope californium-245 which has a half-life of 44 minutes.
There have been many elements that have been discovered in this world. The two latest elements that have been discovered are ununquadium and ununhexium. Ununquadium is element number 114 on the periodic table. It was given the official name of flerovium by the IUPAC in 2012. Ununhexium is element 116 on the periodic table. It was given the official name of livermorium by the IUPAC in 2012. There are two other elements that have been discovered, but not yet confirmed. Those elements are ununtrium and ununpentium. Ununtrium is element 113 on the periodic table and it has no official name yet. Ununpentium is element 115 on the periodic table and also has no official name yet.
Titanium was discovered by Reverend William Gregor in 1791, who had an interested in minerals he recognized the presence of a new element.
Strontium was discovered by an Irish chemist named Adair Crawford. Crawford discovered strontium in 1790 while studying the mineral witherite. He combined witherite and hydrochloric acid. He assumed that his sample was contaminated with an unknown mineral he named strontium.
A few scientists have discovered Tritium in 1939, such as: Lord Ruthfird, Sir John Cockroft, Ernest Lawrence, Luis Alvarez and a few more. Tritium was discovered through the method of isolation of deuterium oxide to prepare deuterium gas. By flooding the elements with accelerated ions such as protons and helium ions it becomes possible to produce
Titanium the 22nd element on the periodic table it was discovered in 1791 in England and was first produced by Matthew A. Hunter an American metallurgist in 1910. The word titanium come from Latin meaning titans in mythology the first sons of earth. Titanium was primarily found in sphene, rutile, and ilmenite. It makes up 0.57% of earth’s crust.
Platinum was discovered by Antonio de Ulloa in 1735. Ulloa established the first mineralogy lab in Spain and was the first to study platinum. Platinum was first recognized as an element in 1774 when Charles Wood isolated the ore with aqua regia. Then the pure form of platinum was found in the residue. However, there were more than one substance that was unknown in the residue. Hippolyte-Victor Collet-Descotils believed that there was an unidentified metals that caused the red color of some platinum salts. In 1803, William Hyde Wollaston investigated this by first dissolving the crude platinum ore in aqua regia. Then he was able to get to the platinum metal by dissolving the solution in ammonium chloride. The liquid which remained had properties which matched no known substance. Wollaston named it Rhodium. This was not the last element that Wollaston discovered that year. He used aqua regia to dissolve the platinum ore and isolated
My element is lead, lead is a good element, lead is used alot in science. Leads symbol is Pb and the atomic number is 82. It is sometimes found in nature but is usually obtained from ores. Lead only makes up 0.0013% of earth's crust but is not considered a rare element since it's easily mined and refined.
Who discovered this element: William Gregor discovered the element in 1791. He was an amatuer geologist in England. While he was looking in a stream he noticed a sandy substance that happened to look like gunpowder and was magnetic. He named the element manaccanite after the place where he discovered it. A little while later in 1795 a well known chemist named Martin Klaproth ended up changing the name of the element to titanium after the Titans sons of Greek Gods and Goddesses.
Glenn T. Seaborg, Joseph W. Kennedy, Edwin McMillan, and Arthur Wahl discovered it in 1940.
Titanium was discovered in 1791 by amateur geologist, William Gregor, as an inclusion of a mineral in Cornwall, Great Britain. Gregor recognized there was a new element present in Ilmenite, when he found black sand by a stream and noticed the sand was attracted by a magnet. He determined the presence of two metal oxides: iron oxide and 45.25% of a white metallic oxide that was unidentifiable. After realizing that the unidentified oxide contained a metal that did not match any known element, Gregor reported his findings to the Royal Geological Society
In September 1860 the birth of the Periodic table began. A group of the world 's best chemists assembled in Germany to discuss the issues of atomic mass. At this meeting an Italian chemist, Stanislao Cannizzaro, introduced the right way to accurately measure the relative mass of an atom. After the new method was introduced chemists started to recognize similarities in the properties of various elements and placed them into families. In this earlier stages of the periodic table there were four main chemists; Dobereiner, Newlands, Lothar Meyer, and Dmitri Mendeleev that played a substantial role in the development of the periodic table. Dobereiner started with a few family groups each containing three elements. Newlands put the elements of those families in repeating groups called octaves. Meyer noted additional repeating properties. Mendeleev put it all together into what has become the periodic table of the elements.