Ytterbium is a rare earth metal, one of the elements found in Row 6 of the periodic table. It has an atomic number of 70, an atomic mass of 173.04, and a chemical symbol of Yb. Ytterbium is a typical metal that is both ductile and malleable. It has a melting point of 1,515°F (824°C), a boiling point of 2,600°F (1,427°C), and a density of 7.01 grams per cubic centimeter. Ytterbium is a relatively reactive element that is usually stored in sealed containers to prevent its reacting with oxygen of the air. Ytterbium is one of the more common rare earth metals with an abundance in the Earth 's crust of about 2.7-8 parts per million. Its most common ore is monazite, which is found in beach sands in Brazil, India, and Florida. It is extracted from its ores by heating lanthanum metal with ytterbium oxide (Yb2O3): 2La + Yb2O3 2Yb + La2O3.
Ytterbium was "discovered" over a period of more than 20 years by three chemists: Jean-Charles-Galissard de Marignac (1817-94) of France, Lars Fredrik Nilson (1840-99) of Sweden, and Georges Urbain (1872-1938) of France. The three chemists all worked on a mineral known as yttria originally discovered near the town of Ytterby, Sweden, in 1787. The mineral eventually yielded nine new chemical …show more content…
Generally speaking, however, it has almost no commercial application of significance. Other authorities reserve credit for the discovery of the latter element, however, for the French chemist Georges Urbain (1872-1938). Urbain showed in 1907 that Nilson 's ytterbia was actually a mixture itself of two oxides. The first he named Leticia and the second, neoytterbium, in order, he said, "to leave the illustrious Marignac, in the future, the credit of his fundamental discovery." The name of the second element was eventually shortened, however, to ytterbium. Ytterbium is identical to cassiopeium, discovered at about the same time by Auer von Welsbach
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Ypres, Belgium- Yesterday, on April 24, the First Canadian Division won recognition by holding their ground at Salient Ypres, against German 's new weapon of modern warfare, chlorine gas for 2 days. On April 22, the Germans released 160 tons of chlorine gas towards the French accompanied by the Canadians and British, which caused many to asphyxiate by drowning in their own bodily fluids. (Ypres 1915) "The French defences crumbled as many died or fled, leaving a gaping 6 kilometre hole in the Allied line.
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.
Yolo comes from the Indian word “yo-loy” which means “abounding in the rushes.” Yolo is one of California’s 27 counties that was created in 1850 which was around the same time California became a state. Yolo county is approximately 1,014 square miles and is located in the agricultural regions in the central valley sitting west of the Sacramento River Delta and north of Napa and Solano County in California. Yolo is a rural area which has plenty of space that is underdeveloped. There are 4 developed cities within Yolo and they are: Davis, Woodland, West Sacramento, and the city of Winters.
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.
The reaction between Hydrochloric Acid and Sodium Carbonate led to the formation of gaseous Carbon Dioxide, aqueous water, and aqueous solution of Sodium Chloride as a result of all compounds containing alkali metals solubility. Lastly, Copper Sulfate and Sodium Carbonate reaction produced an aqueous sodium sulfate solution and a solid precipitate of Copper (II) Sulfite because of all alkali metals and sulfates ability to be soluble and the rule that any compound containing CO₃ is insoluble. In the end, the hypothesis that if we react mystery chemicals with one another, we will be able to identify the reactants and products, create balanced equations, and observe properties because of our prior knowledge learned throughout the course of the unit and using the known chemical reaction was accepted by the data
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).
Purpose: The purpose of the lab was to identify seventeen unknown elements, while using limited information that was presented. Secondly, describe the periodic trends and how each of the properties given changes as you go across a period or down a group. Lastly, to explain how Mendeleev used the properties known to predict the existence of undiscovered elements and use this information to explain their specific properties. Independent Variable: The unknown and known elements given to organize. Dependent Variable:
The Blobfish is a very ugly sea creature. It lives in waters as deep as 1200m, and as shallow as 800m. They mostly live in Australia, but they also live in Tasmania and New Zealand. The Blobfish was discovered in 2003. A few facts about the Blobfish is that they have no bones and very little muscle. They have been globally voted as the world’s ugliest animal.
Who discovered it? How did they discover it? It was not Thomas Jefferson and it was not George Washington, so who was it? On the 17th of January 1706, a man by the name of Benjamin Franklin was born.
A world called Pluton, where there is gender discrimination and females are superior to the males. Growing the population is Pluton’s main purpose. Herein, having the ability to give birth is power, thus females are dominant creatures as they are created with a womb which is able to carry an infant for thirty-six weeks. The only ‘capability’ that men have is the ability of passing the sperm on to the female to bore a child. The superiority of the female is felt strongly at the workplace, home and community at large.
I 'am Yaritza Chavarria, I have a three year old boy. I 've been single for about a year and half. I have three siblings, two brothers and one sister. My mom and dad are seperated, they got seperated when I was a few months old. I see my dad every now and then.
I. The "Wigger" is slang and is the mix of white nigger. It has distinctive thoughts of what the term means as indicated by diverse gatherings of individuals. The general thought of what wigger implies however somebody who is white and “acts dark somehow.” is African American individuals and White individuals have distinctive thoughts of what they consider somebody to be a wigger. White individuals from Detroit consider a wigger to be dark affected styles and kinship with African Americans.
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.