each of the elements. a. Determine how many electrons‚ protons‚ and neutrons there are in each atom. b. Draw a Bohr model of each element using the number of electrons‚ protons‚ and neutrons c. NOTE: The first energy level can only hold up to 2 electrons. The second energy level can hold up to 8 electrons. _________ Electrons _________ Protons _________ Neutrons HELIUM _________Electrons _________ Protons _________ Neutrons OXYGEN 12. Study the following model of an atom and answer the following
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with soap and water before leaving the laboratory Prelab Questions Neutrons were discovered in 1932‚ more than 10 years after the existence of isotopes was confirmed. What property of electrons and protons led to their discovery? Suggest a possible reason why neutrons were the last of the three classic subatomic particles to be discovered. The property that led to the discovery of electrons and protons was their charges. Neutrons were the last of the three subatomic particles to be discovered because
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attack‚ and a low neutron absorption cross-section. All of this promotes its use in the nuclear industry‚ especially in control rods of nuclear reactors. The prices of niobium are reasonable too‚ at a mere $75/lb‚ and are maintained by the largest producer to avoid market perception of a monopoly situation (Winter). Thus‚ niobium acts as a key element in nuclear fission reactors‚ due to its enormous strength‚ high melting point‚ resistance to corrosive chemicals‚ and low neutron absorption. Generally
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sometime in the next 30 to 40 years. Nuclear Fusion is created by forcing deuterium (D) and tritium (T) together‚ when forced together their nuclei fuse and then break apart to form a helium nucleus and an uncharged neutron. Most of the excess energy is contained in the free neutron. Fusion occurs at a very high temperature (greater than 100 million Kelvin). At this temperature the deuterium and tritium gas mixture becomes a plasma. The problem with creating fusion is controlling the plasma. One
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Chemistry Matter – Any substance that has volume & mass. E.g. EVERY THING Atom – The smallest non living thing that can exist. Atomic Structure – Particle | Symbol | Location | Charge | Mass | Proton | P | Nucleus | +1 | 1Heavy | Neutron | N | Nucleus | 0 | 1Heavy | Electron | E | Electron Shell or Orbit | -1 | 12000Light | History of the Atom – The model of the atom has changed with time. Dalton – solid shape (no subatomic particles) (indivisible particle) Rutherford -
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Modern theories For a long time‚ it was thought that the proton‚ neutron‚ and electron were the elementary particles‚ as well as the smallest. Since the Atomic Theory was formulated‚ many new particles have been discovered. The new theories concerning these particles and predicted particles attempts to explain every phenomena in physics. This is also called the Universal Theory of Matter. Dark Matter and Dark Energy Dark matter is an assumed kind of matter which unlike ordinary matter does
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4Chapter 2: the Structure of the Atom A) Matter 1. Matter 2 3 Element Compound 4. Atom 5. Molecule 6. Ion 7. Diffusion Is anything that occupies space and has mass. Is made up of tiny and discrete particles. There are spaces between these particles. These particles may be atoms‚ molecules or ions. Matter exists in three states solid‚ liquid and gas Is a substance that consists of only one type of atom Is a substance that contains two or more elements that are chemically bonded together Molecule
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destructive weapon‚ the hydrogen bomb. This power is tritium‚ an isotope. Isotopes are elements that have different amounts of neutron (Knapp 11). Tritium is an isotope of hydrogen‚ that is used in modern science and there are also health implication through the exposure of tritium. Tritium is an isotope of hydrogen that has mass number 3. It consists of 1 proton and 2 neutrons (the word ‘tri’ in the name means that it has mass number 3‚ just like deuterium‚ where ‘deu’ means mass number 2). Ernest
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Sam Kean‚ a physicist who graduated from the University of Minnesota‚ wrote The Disappearing Spoon a work of nonfiction that tackles and explains the mysteries of the periodic table‚ its history‚ its changes‚ its breakthroughs‚ and its contributions on mankind. Chapter 6 or Completing the Table… with a Bang deals with the revolutionary findings of the Manhattan Project‚ how the holes of the periodic table were filled and last but certainly not least‚ how the apocalypse may occur. In the sixth chapter
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Atomic Theory Essay We are first going to talk about Protons‚Neutrons and Electrons. These three elements are a very good example of most things that are in use of gas fumes. It all started when Protons and neutrons where‚ Protons were discovered by Experimenting with discharging tubes. Eventually they found out the rest of the Atoms over time. Which brings me into the word of Orbital. Orbital is a Neutron‚ electron or a proton Going around a single atom with certain amounts of energy levels. Which
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