Paper Report For The Chapters One And Two Of The Book Peoples History

Paper Report For The Chapters One And Two Of The Book Peoples History Paper Report For The Chapters One And Two Of The Book People's History Of US: (1492 Peoples History of US: (1492 - Present) (Modern ic)-chapter one and two report Identify the central thesis of chapter one and two of Zinn. The two chapters under discussion explain about colonization: direct and indirect and of two different continents but by people from the same continent but who had different motives. The first chapter explains colonization of America (an indirect account of how it started) by Christopher Columbus. Columbus’ colonization on the Arawak was indirect and purely by accident but nevertheless he mistreated them (Zinn 19).The same chapter also provides examples of how other Europeans from different European countries also came to America after its discovery by Columbus and they started also colonizing the other Indians who were there mostly the Iroquois trying to change their ways of life and culture. They managed to disrupt their native culture leaving animosity behind (Johnston 29).Chapter though different is similar too. The colonization in this case is on the African countries happened in the same way where the Europeans wanted goods from Africa and they therefore enslaved them and brought back others as slaves with them and selling them in America to the white wealthy people to be their slaves and servants (Pickett and Dwayne 15).Those not taken as slaves were colonized. The Europeans in the different African countries used different methods to try and enlighten the African with their â€Å"superior† culture making them abandon their cultures and other traditions because they were not good enough including their education and religious beliefs.Discuss why the author chose the title of the chapter.The titles of the two chapters: â€Å"Columbus, the Indians, and Human Progress† and â€Å"Drawing the Color Line† are in line with the explanations being provided within the chapter and they act as a sort of guideline of what the reader should expect is discussed within the chapters.Work CitedJohnston, Harr y. A History of the Colonization of Africa by Alien Races. New York: Cambridge University Press, 2011. Print.Pickett, Margaret and Dwayne, Pickett. The European Struggle to Settle North America: Colonizing Attempts by England, France and Spain, 1521-1608. California: McFarland, 2011. Print.Zinn, Howard. A Peoples History of the United States: 1492 to Present. New York: HarperCollins, 2010. Print.

Atomic Weight Definition (Relative Atomic Mass)

Atomic Weight Definition (Relative Atomic Mass) Atomic weight is the average mass of atoms of an element, calculated using the relative abundance of isotopes in a naturally-occurring element. It is the weighted average of the masses of naturally-occurring isotopes. What Is It Based On? Prior to 1961, a unit of atomic weight was based on 1/16th (0.0625) of the weight of an oxygen atom. After this point, the standard was changed to be 1/12th the weight of a carbon-12 atom in its ground state. A carbon-12 atom is assigned 12 atomic mass units. The unit is dimensionless. More Commonly Known as Relative Atomic Mass Atomic mass is used interchangeably with atomic weight, although the two terms dont mean precisely the same thing. Another issue is that weight implies a force exerted in a gravitational field, which would be measured in units of force, like newtons. The term atomic weight has been in use since 1808, so most people dont really care about the issues, but to reduce confusion, atomic weight is more commonly known now as relative atomic mass. Abbreviation The usual abbreviation for atomic weight in texts and references is at wt or at. wt. Examples The atomic mass of carbon is 12.011The atomic mass of hydrogen is 1.0079.The atomic weight of boron samples collected on Earth falls within a range of 10.806 to 10.821. Synthetic Elements For synthetic elements, there is no natural isotope abundance. So, for these elements, the total nucleon count (sum of the number of protons and neutrons in the atomic nucleus) is usually cited in the place of the standard atomic weight. The value is given within brackets so that its understood its the nucleon count and not a natural value. Related Terms Atomic Mass - Atomic mass is the mass of an atom or other particle, expressed in unified atomic mass units (u). An atomic mass unit is defined as 1/12th the mass of a carbon-12 atom. Since the mass of electrons is much smaller than that of protons and neutrons, the atomic mass is nearly identical to the mass number. Atomic mass is denoted with the symbol ma. Relative Isotopic Mass - This is the ratio of the mass of a single atom to the mass of a unified atomic mass unit. This is synonymous with atomic mass. Standard Atomic Weight - This is the expected atomic weight or relative atomic mass of an element sample in the Earths crust and atmosphere. It is an average of relative isotope masses for an element from samples collected all over the Earth, so this value is subject to change as new element sources are discovered.  The standard atomic weight of an element is the value cited for atomic weight on the periodic table.