The World of Iron
What is Iron? How can we use this element? There are so many needs for this element. Iron has been around since ancient times. No known person is said to have discovered it. Thinking back to early times, iron was used for many developments in the world. Also, it is a part of the Earth from the inside out. What is most important is the body’s need of iron to survive.
Iron comes from the Latin word ferrum. The iron’s symbol on the periodic table is “Fe”, driven from its Latin name. Iron has an atomic number 26, and an atomic weight of 55.847. Iron is a metal that is grayish metallic and magnetic. This element is classified as a transition element because it is both malleable and ductile, and it can also conduct heat and electricity. Iron, cobalt and nickel are the only elements in the transition metals family known to produce a magnetic field. Iron is relatively soft and a good conductor of heat and electricity (chemicool, 2014).Pure iron melts at about 1535 degrees Celsius. Its boiling point is at 2750 degrees Celsius. Iron has 26 electrons, 26 protons and 30 Neut...
Iron is naturally iron oxide and purified iron rapidly returns to a similar state when exposed to air and water. This whole process can be seen below in figure 3 – ‘The corrosion
To understand the roots and impacts of racial profiling and the iron triangle, it is beneficial to know exactly what racial profiling and the iron triangle entails. Racial profiling is the act when any kind of law enforcement officer forms suspicious thoughts about a person due to nothing besides their race or ethnicity. Law enforcement officers often act on these suspicious thoughts due to their training. An example of racial profiling could be made of a woman named Shoshana Hebshi, who is of Jewish and Arab descent who was jerked off of a plane and heavily searched during the ten year anniversary of the 9/11 attacks. Hebshi, an American citizen, was completely innocent and was only brought under suspicion due to her race. Therefore,
Although some of the elements have been known for thousands of years, our understanding of many elements is still young. Mendeleev’s first Periodic Table contained only 63 elements, and about that many were discovered in the following 100 years. Just like countries, emperors, philosophers, and cities, elements have histories, too.“The Disappearing spoon” by Sam Kean, is a detailed history of the elements on the Periodic Table. Kean does a important job of telling every single element’s journey throughout the history of mankind: from the earliest times, when chemistry was intermingled with alchemy, to these days of modern chemistry. For example: Thallium is considered the deadliest element, pretending to be potassium to gain entry into our cells where it then breaks amino acid bonds within proteins. The CIA once developed a plan to poison Fidel Castro by dosing his socks with thallium-tainted
Molybdenum is a transition metal. It is represented by the symbol Mo. It is a pure metal that is is silverish white in color and very hard, and has one of the highest melting points of all pure elements at 4753 °F. Its boiling point is 8382 °F. Its density is 10280 kg/m3 and its hardness is 5.5.
Aluminum is a lightweight, silvery metal. The atomic weight of aluminum is 26.9815; the element melts at 660° C (1220° F), boils at 2467° C (4473° F), and has a specific gravity of 2.7. Aluminum is a strongly electropositive metal and extremely reactive. In contact with air, aluminum rapidly becomes covered with a tough, transparent layer of aluminum oxide that resists further corrosive action. For this reason, materials made of aluminum do not tarnish or rust. The metal reduces many other metallic compounds to their base metals. For example, when thermite (a mixture of powdered iron oxide and aluminum) is heated, the aluminum rapidly removes the oxygen from the iron; the heat of the reaction is sufficient to melt the iron. This phenomenon is used in the thermite process for welding iron .
The Great Gatsby, is beautifully written, and uses symbols effectively, drawing the reader in, and piquing their interest from chapter one to chapter nine. The use of color is most common in the novel, with the use of of many colors the author is able to subtly get his point across. Fitzgerald also uses locations like the Valley of Ash. Objects are used as a way to create mystery and suspense. The symbols help the reader understand the novel better by adding details that make the story more interesting.
It is important to include cultural issues in the helping process to be more effective. We also need cultural competence because the U.S. is becoming more diverse. Therefore with diversity comes different beliefs, norms, and values. Eurocentric values dominate sciences and began cultural universals which puts the clash of dominate and non-dominate cultural behaviors in motion. In 1996 the NASW Code of Ethics increased the recognition of cultural competence. It is important to know diversity exist within ethnic and cultural groups because social workers need to know that relationships between helping professionals and clients may be strained. This happens because of the distrust between groups. Another important aspect is that the professional realizes their own values, biases, and beliefs. The reason for this is because they must value diversity to start with and understand the dynamics of difference. Culturally competent practitioners have to go through developmental process of using their own culture as a starting point to meet all behaviors. Striving for cultural competence is a long term process of development. The literature on cultural competence is theoretical and conceptual. They have not been evaluated in a systematic way. Roughly there are 2 million Native americans in the U.S. Which survive decimating disease, over-repressed in child welfare system, suffer from health problems, and are among the poorest people in the United States. Working with them clearly falls within the social work clearly mandate to serve vulnerable and oppressed clients. However, we do not know how many people from this group is actually receiving help from social workers. Even though it is important to train social workers to provide care in th...
In class, we have read a couple of Flannery O’ Connor’s short stories which include A Good Man is Hard to Find, Good Country People, and Revelations. After reading these stories, I noticed that Flannery O’ Connor changes the story but in a sense keeps the same main characters in every story. The main things that change between these characters are how they decide to handle a situation and their names; the things that do not change are often the outlook that they have on the world. I noticed the grandma from A Good Man is Hard to Find and Ruby Turpin from Revelations follow the criteria that I listed above. Throughout this paper, I am going to discuss the similarities and differences between the grandma and Ruby Turpin.
Iron comes from the Latin word ferrum. From ferrum its symbol became Fe. The atomic number of iron is 26, and its atomic weight is 55.845. Iron is a magnetic, bendable, shiny white metallic element.
In order to ensure a healthy eating lifestyle for citizens the government should impose taxes on junk foods and drinks that are that are less in nutritional value than what is recommended to be consumed by the USDA (United States Department of Agriculture). The extra money from junk food taxes can be used to subsidize actual healthy foods such as fruits and vegetables that seemed to be high priced. Unhealthy foods tend to lead to obesity and health risks. According to Alexandra Sifferlin, (a reporter for TIME who covers health-related issues) “42% of the population will be obese by 2030, which is based on a study released by the Centers for Disease Control and Prevention”. Many problems will accompany obesity, such as Diabetes, high blood pressure, heart disease, strokes and other health risks. While this proposal seems purely beneficial, it is not that simple to just impose a tax on what is deemed healthy in order to benefit the vast majority of people in the United States. There are many variables and factors that have to be considered if this proposal is to be put into effect.
The experiment described below was aimed at investigating bystander apathy and try and relate to it to diffusion of responsibility. The bystander effect has been greatly examined and investigated leading to several conclusions, with diffusion of responsibility being one of the most prevalent. The theory holds that a person is more willing to assist another person in distress when he is alone. When a person is comes across a person in distress and there are other people around, he is less willing to help. This occurrence of this behavior has been theorized to stem from diffusion of responsibility. This theory suggests that as the number of people increases, the responsible to help in a situation reduces. As a matter of fact, the greater the number of people present, the more an individual is likely to assume that the victim is getting help, or help is on the way.
By adding up to 2%,of carbon it makes the steel tough and strong. Although it’s tough and strong, it is able to bend. To make sure that the metal doesn’t rust, it has a zinc coating on it. Iron is 26 on the periodic table,and considered an “transition metal,” meaning that it is ductile and malleable, and conduct electricity and heat. ... “Some other elements that are similar to iron are cobalt and nickel. They are the only elements known to produce a magnetic field.” Zinc is 30 on the periodic table and it is also a transition metal like iron. “The first iron used by humans is likely to have come from meteorites.” A meteorite is a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock, while the remainder consist wholly or partly of iron and nickel. Meteors are believed to have been from the asteroid belt of Mars and
Figure 1: The hexacyanoferrate iron (III) ion: contains 6 ligands which are bound to the central metal therefore has a coordination number of 6 (n=6¬). (Hussain,2007) [13]
The Periodic Table of Elements is commonly used today when studying elements. This table’s history begins in ancient times when Greek scientists first started discovering different elements. Over the years, many different forms of the periodic table have been made which set the basis for the modern table we use today. This table includes over 100 elements and are arranged by groups and periods. Groups being vertical columns and periods being horizontal columns. With all of the research conducted over the years and the organization of this table, it is easy to use when needed.