Get the Facts About the Element Antimony

Get the Facts About the Element Antimony Antimony (atomic number 51)Â  compounds have been known since ancient time. The metal has been known since at least the 17th century. Electron Configuration: [Kr] 5s2 4d10 5p3 Word Origin Greek anti- plus monos, meaning a metal not found alone. The symbol comes from the mineral stibnite. Properties The melting point of antimony is 630.74Â °C, the boiling point is 1950Â °C, specific gravity is 6.691 (at 20Â °C), with a valence of 0, -3, 3, or 5. Two allotropic forms of antimony exist; the usual stable metallic form and the amorphous gray form. Metallic antimony is extremely brittle. It is a bluish-white metal with a flaky crystalline texture and metallic luster. It is not oxidized by air at room temperature. However, it will burn brilliantly when heated, and release white Sb2O3 fumes. It is a poor heat or electrical conductor. Antimony metal has a hardness of 3 to 3.5. Uses Antimony is widely used in alloying to increase hardness and mechanical strength. Antimony is used in the semiconductor industry for infrared detectors, Hall-effect devices, and diodes. The metal and its compounds also used in batteries, bullets, cable sheathing, flame-proofing compounds, glass, ceramics, paints, and pottery. Tartar emetic has been used in medicine. Antimony and many of its compounds are toxic. Sources Antimony is found in over 100 minerals. Sometimes it occurs in native form, but it is more common as the sulfide stibnite (Sb2S3) and as the antimonides of heavy metals and as oxides. Element Classification and Properties SemimetallicDensity (g/cc): 6.691Melting Point (K): 903.9Boiling Point (K): 1908Appearance: hard, silvery-white, brittle semi-metalAtomic Radius (pm): 159Atomic Volume (cc/mol): 18.4Covalent Radius (pm): 140Ionic Radius: 62 (6e) 245 (-3)Specific Heat (20Â °C J/g mol): 0.205Fusion Heat (kJ/mol): 20.08Evaporation Heat (kJ/mol): 195.2Debye Temperature (K): 200.00Pauling Negativity Number: 2.05First Ionizing Energy (kJ/mol): 833.3Oxidation States: 5, 3, -2Lattice Structure: RhombohedralLattice Constant (Ã…): 4.510 Symbol Sb Atomic Weight 121.760 References Los Alamos National Laboratory (2001)Crescent Chemical Company (2001)Langes Handbook of Chemistry (1952)CRC Handbook of Chemistry Physics (18th Ed.)

Philosophy of Law Essay Example | Topics and Well Written Essays - 750 words

Philosophy of Law - Essay Example Although, I depict much abhorrence for Purple Shirts, it is necessary that we respect their philosophy that failed to permit people to present their own views on national matters. An additional difference between our current systems is that the law is applicable to everyone despite the fact that it might fail to favor some people. On contrary, Purple Shirts disregarded those laws not working in their favor. This disregarded those laws comprising of objectives not approved by them. Similarly, viewing their practices to be illegal and not acting in accordance with the law would imply that we practice exactly what we condemn. As my first deputy advises, we need to desist most of the public’s ideas on what to do, and develop a program that will resolve this dispute without allowing the public to intervene (Fuller). As highlighted by the second deputy, it would be a difficult undertaking to arraign the grudge informers to the court for their actions. Although he fails to understand how such a system of governance can be lawful, we cannot dispute the fact that they considered themselves lawful. As my deputy has argued, it would be absurd to consider Purple Shirt’s system of governance legal. Reviewing activities that Purple Shirts engaged into, acts as a clear indication that it was not a legal system. It is apparent that instead of enacting a government that adhered to laws; it allowed different categories of war to occur for which the grudge informer was among them. Therefore, our efforts to consider such acts as criminal would mean that we also endeavor to examine any other practice of those times that did not adhere to the law. The fact that... In consideration to the current regime utilizing a constitution that considers most of the Purple Shirt’s actions unlawful, an individual may consider my decision of not listening to peoples’ woes on what ought to be done to the grudge informers absurd. My argument to support such a decision is that, we cannot consider its actions as lawful, or unlawful. It is evident that what we consider, unlawful during the current regime may be was lawful during the Purple Shirt’s era. Therefore, in as much we are unwilling to address all that occurred during that regime, and which we consider unlawful according to the constitution, it is imperative that we leave the grudge informers alone. This would give us ample time to examine the different economic sectors, therefore, improving them accordingly. If there ever existed a non-democratic regime as highlighted in the current constitution is the Purple Shirt’s governance. The degree at which it practiced its evil deeds was so immense to such that judges who depicted contrasting ideologies suffered death. However, the most recent elections saw the defeat of such a regime, therefore, implementing a democratic government that was lawful. During the elections, I became the minister to implement justice. It was brought into my knowledge about the existence of a category of individuals identified as the grudge informers. These people reported those believed to have engaged in what was considered unlawful by such a regime. Therefore, alongside my panel of deputies, I have recommended on what to do to these people. It would be appropriate not to do anything to such people, since it would be expensive, as well bring about hatred.

Book review on Song of the Hummingbird Essay Example | Topics and Well Written Essays - 750 words

Book review on Song of the Hummingbird - Essay Example The location is in Mexico, and she wants to see somebody who can act as her confessor. â€Å"Song of the Hummingbird† is a novel by Graciela Limon that was written in 1996, and the main purpose of writing this novel was to tell the ‘actual’ story of the fall of Aztecs where Spaniard and Cortes were the conquerors. One version of the history is told the rulers of the country while its other version is told by an old lady (Hummingbird) of the nation in the form of a confession. The old lady is pretty intelligent and she chooses to make a confession before a confessor and starts telling the story of the cruelties, suppression, and brutality of the rulers as well as the actual tactics that were adopted to convert the inhabitants of the nation to Christianity. Huitzitzilin (Hummingbird) is actually a noble lady and is Aztec by birth. It was her twentieth year of age when the Spanish armies entered their country. She was caught by â€Å"awe caused by those bearded white men†. Later on, just like many other patriots of her nation, the feeling of anger possessed her mind, and led her to believe it to be the â€Å"end of civilization†. A princess is, thus, converted into a concubine (mistress who is sexually exploited by her master). She relates the confession or the historical events to the father who is deeply involved in hearing the story and becomes a source of imparting the actual events of history that are contrary to the incidents that are written in books. Father, Benita Lara, had actually come to take her confession and to convert her whereas she was pretty clever and a lot more intelligent than her contemporaries. She wanted to tell the exact socio-political cruelties that had lingered on her people and the brutality that was thrust upon them by the rulers. So, she chooses an odd way of telling history and, towards the end of the confession, she was able to convey her mind to the

Awnser A, B or C Research Paper Example | Topics and Well Written Essays - 2000 words - 1

Awnser A, B or C - Research Paper Example However, the need for controlling the unknown, for creating parameters through alteration so that the odds of a good life are increased deletes the potential for challenges and obstacles that stimulate creativity and innovation. In trying to control the future, in creating a life in which all elements of natural creation are subjected to human manipulation, the nature of human existence is greatly altered, inextricably detached from the surprises that enrich the nature of life. In genetically engineering children, the natural order of life becomes something that is defined by hubris, eliminating the potential for greatness that is born of adversity and ending the true existence of humanity. Francis Fukuyama puts forth arguments against the use of genetic engineering as a way to improve the human condition. He suggests that to use these forms of science to change the outcomes of life would be an inroad to changing the nature of humanity (Fukuyama). This argument clearly expresses the basic nature of scientific meddling in human development. The concept that humanity is vulnerable to the ways in which science has the capacity to change elements of life provides for a cascade of effects that can ultimately change perceptions, shift ideological beliefs, and push cultural construction towards a world in which little is left that has the basic elements of human life still held within it. When applied to the question of genetic engineering babies, the acceleration of these problems has the potential of changing the nature o human existence to a point where life is essentially changed. In choosing the attributes of a child from a menu of options so that parents have the belief that they can create the exact child that they want, human interaction and existence will fundamentally change in ways that will represent irrecoverable losses. One of the most powerful arguments for human genetic

Newspaper Articles Summary Assignment Example | Topics and Well Written Essays - 500 words

Newspaper Articles Summary - Assignment Example For that reason, Mcbrayer says that root cause of this attitude must lie somewhere else but not in the philosphers. Mcbrayer argues in the article that the attitude of viewing moral values as mere opinions that are not factual lies in the education system of America, particularly in the curriculum. Mcbrayer says that his research on the topic made him to realize that children are taught, from very tender age, to view moral values as being mere beliefs or opinions. Mcbrayer goes on to argue that children are taught that a fact is a claim that can be evidenced, on the other hand, an opinion is a claim that cannot be evidenced or proved. For this reason, Mcbrayer argues, children are taught to view all moral claims as being mere claims and not facts. For his reason, according to Mcbrayer, children develop negative attitude against moral values and the view moral values as being untrue claims. Mcbrayer claims in the article that the dichotomy of facts and opinions in the curriculum in American schools accounts for the reason why American children think that there are no moral facts. Mcbrayer conclude s his article by saying that moral values are indeed facts and not mere opinions; for Mcbrayer, a belief or an opinion can be true. For this reason, moral values are indeed true claims and for that reason they are facts and not mere opinions. A critical view of Mcbrayer’s views in this article shows that Mcbrayer is right in his view that moral values are facts and not mere opinions. This is because, although, we cannot give proof or evidence of moral values, there are many other things in life that we cannot give evidence of and yet we hold them as truth. Since moral values help human beings to live well and to maintain human dignity, moral values are indeed facts and not mere opinions. In this article, an Oliver sack laments the fact that she is suffering from the

The Acquisition of English Simple Past Tense Essay

The Acquisition of English Simple Past Tense - Essay Example And every ethnic Spanish or Chinese citizen of USA (or any other citizen of the country, for that matter) is expected to have a good knowledge and understanding of the English language. They try to learn the English language, some of them, late in their lives, if they have come to the USA, late in their lives, and that is not an easy task. In fact learning any second language late in life is not at all an easy task for anyone, mostly because the grammar and structure of each language is unique in some respect or other and the difficulty of mastering a language increases in direct proportion to the age of the learner.Chinese is equally a widely spoken language, with considerably more than a billion people being very proficient in that language. (howardcc.edu, http://www.howardcc.edu./edu/kids languages. html, retrieved August 27, 2006.) And Spanish does not lag far behind, with 410 million people claiming the language as their first language. (howardcc.edu.). We analyse in this paper some aspects of language acquisition by considering the pattern of ‘simple past tense’ in Chinese, Spanish and in English. All languages have a system of grammar which is a body of rules specifying what sequences of sounds or words are correct in forming sentences while speaking or writing in a particular language. Many grammar books exist in almost all languages dealing with rules for speaking or writing the particular language concerned, or a particular analysis of the rules of the language. An early English language grammar published in the USA was in 1831 written by Noah Webster, entitled ‘An Improved Grammar of the English Language’, which may be consulted now in the libraries of the British Museum in London, and of American Universities like Harvard and Michigan. (http://www.netstate.com/states/people/ct_nw.htm Corpora and Childes It was stated above that there are difficulties in acquiring the knowledge and use of a second language. To investigate the possible minimisation of that difficulty, a thorough search was made of the ‘corpora’ and ‘childes’ web sites in the internet. The word ‘corpora’ literarily is the plural of the word ‘corpus’, which means â€Å"a body, living or dead; the corporeal substance of a thing†. In the study of language acquisition, corpora are a technique often used by linguists as the raw material from which language description may be fashioned. Corpora can provide the basis of empirically justified, linguistic observations on which to base CALL (Computer-assisted language learning) materials. Additionally, the corpora themselves may become the raw material of CALL based

Electronic commerce as the concept of marketing Essay

Electronic commerce as the concept of marketing - Essay Example Electronic commerce as the concept of marketing Information technology plays an important role in the development and growth of industries of any economy.. Incorporation of information technologies has changed the business process of all the industries whether they are small-scale or large scale. It has entirely changed the aspects of market competitiveness in terms of products and processes. The amalgamation of information technology into business sector recompenses for size and distance and enables companies to expand and to work in a global market. Using new innovative tools and techniques of information distribution, they can no longer be isolated from international market. Such technologies includes electronic/video conferencing, mailing, tele-conferencing, electronic commerce, electronic networking etc. Internet is pool that can be used to access any kind of information without compensating on quality, legal and regulatory requirements, fiscal regulations and opportunities. It becomes very simple and easy to attain, collect any kind of information on technologies and markets with the use of various networking components. The acquired information can be used as a source of analysis to increase the productivity, profit and market share of the enterprise. The information is accessible with in a few seconds.Evolution in the world of computing and in the era of communications takes the form of global information networking. The net result of this innovation is that it decreases the cost, the time for collection the required valuable information no matter how far that information is. Along with this, the ability to collect, analyze and the frequency of transmission of data has enhanced extremely. Local knowledge can be assimilated, distributed among economic agents and then can be merged with global knowledge to give the valuable piece of information. The net effect of all these activities and use of communications technology has drastically decreased the transaction costs; expedite the triumph of scope with the familiar rapid and continuous customization. Such transmissions undermine authoritative controls since the hoarding of information is no longer possible. For all the Internet's promise as the consummate commercial marketing vehicle many companies are skeptical of their ability to accurately judge the return on their cyberspace investment. The development of internet-based technologies opens endless opportunities for Marketers. Drawing coop concentration to the ethical facet of the use of web-based technologies in the area of business might comprise of differentiating force for proactive firms. So, eCommerce is everywhere whether it is e Mail and messaging or shopping cart or order processing system or domestic or international payment systems. But in this rapidly changing environment of e business, business executives need to react immediately and sufficiently by converting their traditional business strategies to e-commerce processes. In doing so, they must assess opportunitie s and threats by examining closely the economic, demographic, political, cultural and technological factors that affect businesses trading online. Economic Factors With the emergence of whole world as global market, the significance of e