Thursday, December 19, 2019
The Physics Of The Atom Essay - 1289 Words
The atom is the building block of every known physical element in existence. Every solid, liquid, gas, plasma has either neutralized or ionized particles. Atoms are tiny in size at around 10 billionths of a meter. The majority of the particlesââ¬â¢ mass is the nucleus. The protons possess a positive charge, while electrons have a negative electric charge and neutrons have no electric charge. The atom is the fundamental unit of every element that has the chemical components of the element, consisting of a nucleus, a particular combination of neutrons and protons, and has one or more electrons bound to the core by an electrical charge. The thought that matter is made up of discrete units is a very ancient idea. This idea appears in several ancient cultures such Greece and India. Ancient Greek philosophers first coined the term atom. The Greek philosopher Democritus was the first person to use the word atom; meaning indivisible. He thought that if take any piece of matter and continuously subdivide it, a point would reach where the atom could not be divided anymore. This fundamental unit is what Democritus called an atom. However, these ideas were established based on philosophical and theological reasoning rather than through evidence and experimentation. Therefore, the views expressed by these philosophers on how atoms look like and behave were inconsistent. They were incapable of convincing everybody based on what they thought. Thus, atomism was just one of the many theoriesShow MoreRelatedEssay On Physics After The Discovery Of The Atom888 Words à |à 4 PagesPARTICLE PHYSICS AFTER THE DISCOVERY OF THE HIGGS The world of physics had been developed a well-established model of the atom. The standard model had been pretty well ââ¬Å"tied upâ⬠, with its group of 16 elementary particles and their nice set of rules describing how they should interact. Physicists had observed until the Higgs discovery, 16 of these particles. The crowd was already beginning to desperate for a 17th particle that would send the model in new and wild directions (supposedly). But the HiggsRead MoreThe Physics Of Water And Hydrogen Atoms1196 Words à |à 5 PagesWater has a simple molecular structure which consists of one oxygen atom (O) and two hydrogen (H) atoms. As both oxygen and hydrogen have little to no difference in electronegativity and are non-metals they covalently bond by sharing a pair of electrons to complete their outer shell. When the atoms are covalently bonded they form water H2O. As shown in the diagram 1, after sharing two of its valance electrons, oxygen is left with two pairs of electrons available for bonding. Polarity refers to theRead MoreNuclear Physics Of The Society Development1374 Words à |à 6 PagesNuclear physics in the society development Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions. The most commonly known application of nuclear physics is nuclear power generation, but the research has led to applications in many fields, including nuclear medicine and magnetic resonance imaging, nuclear weapons, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Nuclear physics has a lot of importanceRead MoreThe Discovery Of The Atom1384 Words à |à 6 PagesAn Atom is the the basic building block of all matter. Atoms are made up of Particles, called: Protons, neutrons and Electrons. Protons carry a positive charge, the neutron carry s a neutral charge and the electron carryââ¬â¢s a negative charge. The Atom has two main parts the Nucleus and the Electron Shell. The Nucleus contains the Protons and Neutrons. The electron Shell Contains the The electrons. There are many Scientist that contributed in the investigation of the atom which are: 1- John DaltonRead MoreAn Extraordinary Man From Demark920 Words à |à 4 PagesOn October 7, 1885, an extraordinary man from Demark was born. A baby boy, who was yet to find out the impact he would have on this world. This man was Niels Bohr, and he made fundamental contributions in the way one can understand the atom s structure. In addition to the structure, he also had an impact in the early development in quantum mechanics. His impact not only made a change in history, but also changed the way people looked at the atomââ¬â¢s structure. We can now build and learn from NielsRead MoreNuclear Weapons and Their Linkage with Physics1100 Words à |à 4 PagesWeapons and their Linkage with Physics The functioning of nuclear weapons requires understanding the underlying physics beginning with the structure of the atom. The nucleus of the atom consists of electrically neutral particles called neutrons and positively charged particles called protons. The no. of protons equals the no. of electrons rendering the atom electrically neutral. The nucleus of the radioactive particle U-235 has 92 protons and 143 neutrons and heavier atoms have larger excess of neutronRead MoreThe Modern Concept of the Atom855 Words à |à 4 Pagesmodern concept of the atom. I am going to give a brief history of the atomic model including Thomsons atom, Rutherfords atom, Bohrs atom, and Schrà ¶dingers atom. I am going to include a diagram for each of these models. In 1897 physicist, J.J. Thomson, shortly after discovering electrons, proposed his Plum-Pudding model of the atom. He based this model on the two facts that he knew at the time: 1. atoms contain small negatively charged particles called electrons and 2. atoms behave as if theyRead MoreQuestions and Answers on Ernest Rutherford Essay681 Words à |à 3 Pageswidowed mother to live there in 1855. What work did Ernest do before he discovered nuclear physics? Ernest did a lot of work before he discovered the atomic theoryanx made a big name for himself. Ernest went to England in 1907 to become Langworthy Professor of Physics in the University of Manchester. In 1919 he accepted an invitation to succeed Sir Joseph Thomson as Cavendish Professor of Physics at Cambridge. He also became Chairman of the Advisory Council, H.M. Government, Department ofRead MorePhysics : Mechanical And Chemical Interactions1432 Words à |à 6 Pagesmodels. Most agreed friction is the force required to move atoms over bumps and valleys because of intertwining and interlocking of the atoms or friction is the force caused by the rubbing and sliding of an atom past another. Also when the students with the interlocking model were question about the outcome if the surface was to become automatically smooth they all agreed friction would persist because ââ¬Å"there is still some contour in the them (atoms).â⬠Likewise when asked to explain why oil reduces frictio nRead MoreBiography of Niels Bohr, The Danish Physicist Essay1120 Words à |à 5 Pagestheoretical work in the structures of atoms were being done. He met with J.J. Thomson of Cavendish Laboratory and Trinity College, Cambridge. He attended lectures on electromagnetism given by James jean and Joseph Larmor and decided to do some research on cathode rays, but failed to impress Thomson. He had more success with younger physicists like Australian William Lawrence Bragg, and New Zealandââ¬â¢s Ernest Rutherford, whose 1911 Rutherford method of the atom had challenged Thomsonââ¬â¢s 1904 plum pudding
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