List of Naturally Occurring Elements

Some elements have been made by man, but do not exist naturally. Have you ever wondered how many elements are found in nature? Of the 118 elements that have been discovered, there are 90 elements that occur in nature in appreciable amounts. Depending who you ask, there are another 4 or 8 elements that occur in nature as a result of radioactive decay of heavier elements. So, the grand total of natural elements is 94 or 98. As new decay schemes are discovered, its likely the number of natural elements will grow. However, these elements will likely be present in trace amounts. There are 80 elements that have at least one stable isotope. The other 38 elements exist only as radioactive isotopes. Several of the radioisotopes instantly decay into a different element. It used to be believed that of the first 92 elements on the periodic table  (1 is hydrogen and 92 is uranium) that 90 elements occur naturally. Technetium (atomic number 43) and promethium (atomic number 61) were synthesized by man before they were identified in nature. List of the Natural Elements Assuming 98 elements can be found, however briefly, in nature, there are 10 found in extremely minute amounts:  technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; plutonium, number 94; americium, number 95; curium, number 96; berkelium, number 97; and californium, number 98. Here is an alphabetical list of the natural elements: Element Name Symbol Actinium Ac Aluminum Al Antimony Sb Argon Ar Arsenic As Astatine At Barium Ba Beryllium Be Bismuth Bi Boron B Bromine Br Cadmium Cd Calcium Ca Carbon C Cerium Ce Cesium Cs Chlorine Cl Chromium Cr Cobalt Co Copper Cu Dysprosium Dy Erbium Er Europium Eu Fluorine F Francium Fr Gadolinium Gd Gallium Ga Germanium Ge Gold Au Hafnium Hf Helium He Hydrogen H Indium In Iodine I Iridium Ir Iron Fe Krypton Kr Lanthanum La Lead Pb Lithium Li Lutetium Lu Magnesium Mg Manganese Mn Mercury Hg Molybdenum Mo Neodymium Nd Neon Ne Nickel Ni Niobium Nb Nitrogen N Osmium Os Oxygen O Palladium Pd Phosphorus P Platinum Pt Polonium Po Potassium K Promethium Pm Protactinium Pa Radium Ra Radon Rn Rhenium Re Rhodium Rh Rubidium Rb Ruthenium Ru Samarium Sm Scandium Sc Selenium Se Silicon Si Silver Ag Sodium Na Strontium Sr Sulfur S Tantalum Ta Tellurium Te Terbium Tb Thorium Th Thallium Tl Tin Sn Titanium Ti Tungsten W Uranium U Vanadium V Xenon Xe Ytterbium Yb Yttrium Y Zinc Zn Zirconium Zr The elements are detected in stars, nebulas, and supernovae from their spectra. While pretty much the same elements are found on Earth compared to the rest of the universe, the ratios of the elements and their isotopes are different.

Who Is Worse Criminals Or Police - 1473 Words

Michael Hatem Dr. Kinnison English 10 February 29, 2016 Who is Worse: Criminals or Police? Do you think there is still racism in the world even today? Do you think racism has left the United States of America? Even after a being slave free country for more than 150 years? Have you ever thought , based on the color of your skin or what you believe, that you have a higher chance of being jumped, raped, or killed while walking on the street or in your home by another human. Imagine if this human was the person the country looks up at to protect the all neighborhoods and cities of the US. Police in the US are racist and discriminate against minorities. Policemen, especially white, have been notorious for killing African Americans,†¦show more content†¦He was deemed not armed and loaded and not dangerous but was shot and killed anyways. This is one of the more extreme cases of police being racist but there is many more small things that account for all the police racism. In Ferguson one and three white males stopped on the street are carrying contraband. One in five black males stopped on the street were carrying contraband. This shows that police are more suspicious with black males rather than white males. An African American policeman recently let the world know his standings on the racism within the police system, he starts off by saying, As a kid, I got used to being stopped by the police. I grew up in an inner-ring suburb of St. Louis. It was the kind of place where officers routinely roughed up my friends and family for no good reason I hated the way cops treated me. But I knew police weren’t all bad. One of my father’s closest friends was a cop. He became a mentor to me and encouraged me to join the force. He told me that I could use the police’s power and resources to help my community. He continues by talking about his experiences in the police force, So in 1994, I joined the St. Louis Police Department. I quickly realized how naive I’d been. I was floored by the dysfunctional culture I encountered. I won’t say all, but many of my peers were deeply racist. One example: A couple of officers ran a Web site called St.

The Anti-Slavery Movement in Early America free essay sample

Believe that we see some of the early seeds of the anti-slavery movement in the Pennsylvania Colony. William Penn founded this colony with the belief of religious freedom and liberal land policy. William Penn was a Quaker and they were Protestants who believed that Gods will was directly transmitted to people through the inner light of divine knowledge that a person possesses within his or her being.He owned slaves personally and allowed other colonist to do the same. Like most northern slaves, slaves in Pennsylvania were Fiscal used primarily as domestic workers. Although some Quakers spoke out publicly against slavery as early as 1 688, slavery lasted in Pennsylvania until the sass (Schultz, CHAPTER 3 Expansion and Its costs, 1660-1700 page 47, 2012). During the time of the American Revolution Delaware prohibited the importation of African Slaves in 1 776, followed by Virginia in 1778.However, Vermont become the first American Colony to abolish slavery altogether in 1777 (Wider History Group, 2012). We will write a custom essay sample on The Anti-Slavery Movement in Early America or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Many religious persons coming to America were against slavery. These religious persons felt that slavery was a moral evil. However, slavery was felt as necessary evil for the economic development of many southern colonies and states. The Constitution prohibited importation of slaves, to begin in 1808, but again managed to do o without using the words slave or slavery. Slave trading became a capital offense in 1819. There existed a general feeling that slavery would gradually pass away (Wider History Group, 2012). We can see the beginning of the anti-slavery movement taking place within the northern colonies. One of the interesting parallels with this is that many of the Northern Colonies were developed with individual freedoms and many were established due to religious persecution in England. Whereas manySouthern Colonies were established primarily with the goal of a settlement which produced a profit, and were not very interested in non-English persons freedoms. We can see evidence of this with the Jamestown colony which was a Joint Stock Venture in which companies in London financed the settlements in exchange for the a share of the profits. This is where the two principal ideals for the colonies clashed, and where early anti-slavery movements began.

Technologies and instructions in the learning process

The emerging technologies have changed the general way of life of humankind. One of the factors that technology has had a serious bearing on is instruction. Instruction is very important in daily life of an individual. Instruction cannot be avoided, irrespective of one’s age, financial status or the position held in the society.Advertising We will write a custom essay sample on Technologies and instructions in the learning process specifically for you for only $16.05 $11/page Learn More In one way or another, there will be an instruction that one would have to follow in order to get the desired results. To students, instruction is the way of life. Students have to follow instruction right from the time they set their foot into the school compound. There will be instruction on how to manage time, which place to be at specific times and many other issues that would require instructions to be followed. One of the main areas where instruction is vital to a student is when handling an exam, an assignment, or other such related activities. Success or failure of a student would start by following or failure to follow instruction. Technology has played a very important role in the process of delivering instructions. It is now possible to record an instruction in an audio-visual or in hard copes like in a paper, thanks to technology. A student can go through the recorded instruction severally in order to be acquainted with it and act within its perimeter. Technology has completely changed the way in which instruction is designed and delivered. It is an open truth that technology improves instruction. Shambaugh and Magliaro (2006) argue that a good instruction is one that is clear to the target audience, precise and easy to follow. Given the above attributes, technology would improve instruction by allowing the target audience the ability to go through the instruction a number of times to make it clearer. With the help of technology, the person delivering the instruction can make it shorter and precise for the recipient to understand it easily. Although a number of scholars have argued that the use of technology in instructions is just but a trend, there are strong signs that show that technology in instruction is here to stay. There cannot be a better way to formulate and deliver an instruction without using technology. It is true that the current technology being used to deliver instruction may change in future. However, this technology would come with better methods for formulation and delivery of instructions.Advertising Looking for essay on education? Let's see if we can help you! Get your first paper with 15% OFF Learn More Reference Shambaugh, N. Magliaro, S. G. (2006). Instructional design: A systematic approach for reflective practice. Boston, MA: Pearson Education, Inc. This essay on Technologies and instructions in the learning process was written and submitted by user Ulises F. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.