Atomic Structure Quiz Sample Questions 1. Why do only the number of protons and the number of neutrons make up the atomic mass of an element‚ but not the electrons? We generally do not use the number of electrons when calculating the atomic mass of an atom because they weigh so little (precisely 1/1836 AMU)‚ and only in precise calculations are the masses of the electrons included in atomic mass. 2. What was the difference between Mendeleev’s table and Mosley’s new arrangement? Mendeleev arranged
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electrons) “LEO the lion says GER” LEO = lose electrons‚ oxidized GER = gain electrons‚ reduced IN TEXTBOOK acronym– oxidation is loss‚ reduction is gain (OILRIG) See your grade 12 chemistry notes for review. REDOX Reactions Electrons travel with protons. Therefore‚ addition or removal of hydrogen associated with REDOX reactions. Becomes oxidized C6H12O6 + 6O2 6CO2 + 6H2O + ATP + heat Becomes reduced Electron Carrier in cellular respiration NAD+ Nicotinamide adenine dinucleotide “Collects”
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of: – Nucleus • contains protons (+ charge) and neutrons (no charge) – Outside the nucleus • Contains electrons (extremely small‚ - charge) – In an atom‚ # of protons = # of electrons – SO…Atoms are electrically neutral! 1 9/22/2011 What makes elements different from one another? • Atomic number – the number of • Different elements contain different numbers of PROTONS! protons in the atoms of a particular element – Ex: Hydrogen has one proton and an atomic number of
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The Great Metabolic Race Metabolism comprises of a vital set of biochemical reactions that all living organisms require to sustain life. For a marathon runner‚ their physiological response to strenuous exercise depletes both their fats and carbohydrate storage in order to supply energy in the form of Adenosine Triphosphate (ATP). ATP is the energy form that the human body uses for biological processes such as movement and synthesis of biomacromolecules. In regards to running a marathon‚ the athlete
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Strength | 1. Established in 1992 & total employee strength of 10000 employees 2. Malaysia’s second largest automobile manufacturer after Proton 3. Among largest small car manufacturers in Asia 4. Indirectly linked to Toyota which gives an image of Japanese association | Weakness | 1.They are notorious for low safety standards due to their design 2.They are excessively dependent on Toyota for upgrades 3.A local Malaysian player thus currently limited reach | Opportunity | 1.They should
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atom can move up and down the energy levels‚ one level at a time‚ and can never stop in between. Every hydrogen atom is made up of a single electron - proton system. Because the negative electron is attracted to the positive proton‚ potential energy is created inside the atom.<br><br>He figured that the farther away the electron is from the proton‚ the greater the potential energy is inside. In conclusion‚ since hydrogen atoms emit light energy in specific frequencies‚ the hydrogen atom must be within
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puzzle made of smaller pieces. After the discovery of the electron and proton as subatomic particles J.J. Thomson had started to discover atomic theory that gave a complete explanation of atomic structure. According to Thomson protons are embedded in the atoms like a water melon and electrons are present in atoms to make the atom electrically neutral. He called this the “plum pudding” model‚ in the model the electrons and protons are uniformly mixed throughout the atom. His discovery of atomic theory
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As positively charged particles (protons) move from the inter-membrane of the mitochondria into the first chamber and are pumped into the matrix‚ a charge that can power the axle rotation is generated. This charge occurs because the protons are moving back and forth from an area of high concentration‚ i.e very crowded‚ to an area of low concentration‚ i.e not crowded. With this continuous proton movement‚ the axle has enough power to rotate‚ as its rotating a reaction
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CHE 140 Name__Chesi Spriggs First Hour Exam Potentially useful information 1000 g = 1 kg 1000 mL = 1 L 1 in = 2.54 cm 1 mL = 1 cm3 D = m/v Select the best choice for the following questions. ___e___ 1. A hypothesis is a(n) a. formulation of principles based on facts. b. modification of a theory. c. organized body of knowledge. d. tentative explanation of observations. e. None of the above. __b___ 2. The initial success of the Bohr theory was based
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table and vocab (65 points) Match the following items. (14 points) 1. emitted from a cathode ray tube Bohr 2. discovered the neutron Chadwick 3. discovered the electron JJ 4. postulated the quantum atom nucleus 5. discovered the proton electrons 6. father of atomic theory Dalton 7. location of most of the mass of the atom Bohr 1. unlike charges attract 2. like charges repel 3. charge on a neutron nonmetals 4. location of an electron periodicity
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