Friday, March 20, 2020

The Flip Side essays

The Flip Side essays The Flip Side Prejudice- an opinion formed without knowing the facts or by ignoring the facts Racism- a belief that race is the primary determinate of human traits Stereotype- a way of thinking about a person, group, etc. That follows a fixed common pattern, paying no attention to individual differences These are words that we hear each and every day. People use them to talk about the need for tolerance and change. However, this essay is not about Martin Luther King or Malcolm X. Nor is this about Adolph Hitler or Mussolini. This essay is about the flip side of the story. It's about the way in which the minority stereotypes the majority. It's about the racism and the prejudices that are placed on the white middle to upper class culture. I feel it is necessary to take the time to look at the perspective of the accused. The type of prejudice I speak of is the type of prejudice that goes unsaid. This prejudice exists deep in the hearts and minds of many once oppressed people. The question you ask is, "if it goes unsaid, then how do we know it is there?" The answer is that it reveals itself through the actions of the people who hold it. It appears when I walk down the streets of Birmingham and an African American gives me a look that shouts you're not welcome. It appears when I open the door for a young lady and I can tell by her face that she blames me for over a hundred years of oppression. It appears when the hard working, blue collar worker sees me pull out my leather billfold at the local McDonalds and looks at me like I am not a man because everything has been handed to me. These are the prejudices that go unsaid, but most definitely exist. These prejudices exist because the minority needs someone to blame. Don't get me wrong. I am not trying to negate the horrible discriminations that have occurred in our country whether they are racial, sexual, or economic. Of...

Tuesday, March 3, 2020

Difference Between Atomic Mass and Mass Number

Difference Between Atomic Mass and Mass Number There is a difference between the meanings of the chemistry terms  atomic mass and mass number. One is the average weight of an element and the other is the total number of nucleons in the atoms nucleus. Atomic mass is also known as atomic weight. Atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that elements isotopes.The mass number is a count of the total number of protons and neutrons in an atoms nucleus. Key Takeaways: Atomic Mass Versus Mass Number The mass number is the sum of the number of protons and neutrons in an atom. It is a whole number.The atomic mass is the average number of protons and neutrons for all natural isotopes of an element. It is a decimal number.Atomic mass value sometimes change over time in publications as scientists revise the natural isotope abundance of elements. Atomic Mass and Mass Number Example Hydrogen has three natural isotopes: 1H, 2H, and 3H. Each isotope has a different mass number. 1H has 1 proton. Its mass number is 1. 2H has 1 proton and 1 neutron. Its mass number is 2. 3H has 1 proton and 2 neutrons. Its mass number is 3. 99.98% of all hydrogen is 1H 0.018% of all hydrogen is 2H 0.002% of all hydrogen is 3H Together, they give a value of atomic mass of hydrogen equal to 1.0079 g/mol. Atomic Number and Mass Number Be careful you dont confuse atomic number and mass number. While the mass number is the sum of the protons and neutrons in an atom, the atomic number is only the number of protons. The atomic number is the value found associated with an element on the periodic table because it is the key to the elements identity. The only time the atomic number and mass number are the same is when you are dealing with the protium isotope of hydrogen, which consists of a single proton. When considering elements in general, remember the atomic number never changes, but because there may be multiple isotopes, the mass number may change.