Bohr theory - Study guides, Class notes & Summaries
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DAT General Chemistry Latest Update Graded A+
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DAT General Chemistry Latest Update Graded A+ Atomic Number number of protons found in that atom; low number; (Z) 
Mass Number Protons + Neutrons; high number; (A) 
Atomic Mass relative mass of that atom compared to the mass of a carbon-12 atom (which is set at 12.00); measured in amu; 
1 amu = 1.66x10^-24 
Atomic Weight weight (g) of one mole (mol) of a given element (g/mol); the weighted average of all the masses (not the weights) of an element, weighted according to the natural abundance of t...
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Chemistry Praxis Review Questions and Answers
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Schrodinger (1925) Continued upon Bohr's findings to determine where electrons are typically found. 
 
Heisenberg (1927) Created the heisenberg uncertainty principle because you never can predict where the electron is. (Breaking Bad) 
 
De Broglie (1924) Electrons act like waves around the atom. 
 
Niels Bohr (Bohrbit) (1913) Electrons can orbit the nucleus in certain special orbits at different energy levels around the nucleus. 
 
Earnest Rutherford (foil) (1910) Fired beam of alpha particles ...
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Test Bank for Chemistry: The Molecular Nature of Matter, 8th Edition by Jespersen
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Test Bank for Chemistry: The Molecular Nature of Matter, 8th Edition 8e by Neil D. Jespersen, Alison Hyslop. Full Chapters test bank are included with answers - Chapter 1 to 22 included 
 
0 A Very Brief History of Chemistry 1 
 
0.1 Chemistry’s Important Concepts 2 
 
0.2 Supernovas and the Elements 3 
 
0.3 Elements and the Earth 5 
 
0.4 Dalton’s Atomic Theory 7 
 
0.5 Internal Structure of the Atom 8 
 
Tools for Problem Solving 20 
 
Review Questions and Problems 21 
 
1 Scientific Meas...
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Test Bank for College Physics, 12th Edition by Raymond A. Serway
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Test Bank for College Physics 12e 12th Edition by Raymond A. Serway, Chris Vuille, John Hughes. Full Chapters test bank are included with answers (Chapter 1 to 30) Complete Guide 
 
1. Units, Trigonometry, and Vectors. 
Standards of Measurements. Measurement Uncertainty and Estimation. Math Review. Vectors. Overview of Physics. 
2. Motion in One Dimension. 
Displacement, Velocity, and Acceleration. Motion Diagrams and Graphs. One-Dimensional Motion with Constant Acceleration. Freely Falling Obje...
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DAT General Chemistry Exam Questions Correctly Answered.
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DAT General Chemistry Exam Questions Correctly Answered. 
 
 
Atomic Number - CORRECT ANSWER number of protons found in that atom; low number; (Z) 
 
Mass Number - CORRECT ANSWER Protons + Neutrons; high number; (A) 
 
Atomic Mass - CORRECT ANSWER relative mass of that atom compared to the mass of a carbon-12 atom (which is set at 12.00); measured in amu; 
 
1 amu = - CORRECT ANSWER 1.66x10^-24 
 
Atomic Weight - CORRECT ANSWER weight (g) of one mole (mol) of a given element (g/mol); the weighte...
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DAT General Chemistry Exam Solution.
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Atomic Number - correct answer number of protons found in that atom; low number; (Z) 
 
Mass Number - correct answer Protons + Neutrons; high number; (A) 
 
Atomic Mass - correct answer relative mass of that atom compared to the mass of a carbon-12 atom (which is set at 12.00); measured in amu; 
 
1 amu = - correct answer 1.66x10^-24 
 
Atomic Weight - correct answer weight (g) of one mole (mol) of a given element (g/mol); the weighted average of all the masses (not the weights) of an element, w...
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DAT General Chemistry Exam |170|questions with complete solution
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DAT General Chemistry Exam |170|questions with complete solution 
Atomic Number ANS-number of protons found in that atom; low number; (Z) 
 
Mass Number ANS-Protons + Neutrons; high number; (A) 
 
Atomic Mass ANS-relative mass of that atom compared to the mass of a carbon-12 atom (which is set at 12.00); measured in amu; 
 
1 amu = ANS-1.66x10^-24 
 
Atomic Weight ANS-weight (g) of one mole (mol) of a given element (g/mol); the weighted average of all the masses (not the weights) of an element, ...
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MTTC integrated Sciences 094 physical sciences Correct 100%
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Plasma - ANSWER ionized gas that has some electrons that are described as free because they are not bound to an atom or molecule 
 
specific gravity - ANSWER measurement of the density of substances in a liquid compared to water 
 
atomic theory - ANSWER a theory that states that all matter is composed of tiny particles called atoms. 
 
John Dalton - ANSWER developed modern atomic theory 
 
negative ion - ANSWER anion, gains electrons 
 
positive ion - ANSWER cation; loses electrons 
 
ionic bon...
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AC HPAT Chemistry Questions All Correct Answers
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AC HPAT Chemistry Questions All Correct Answers 
 
single displacement - ANSWER- A + BC --> AC + B 
 
double displacement - ANSWER- AB + CD --> AD + CB 
 
precipitate - ANSWER- A solid that forms from a solution during a chemical reaction. 
 
energy level - ANSWER- Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. 
 
What is the atomic number of an element - ANSWER- number of protons 
 
What is the mass number of an el...
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CEM 141 Final Exam Questions & Answers Solved 100% Correct!!
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Why are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the 
nucleus are positively charged and so the alpha particle is repelled. 
Is this statement (Dalton's Theory) true or false and why? 
"All atoms of an element are identical and have the same mass and properties." - Answer-False. 
Atoms of the same element can have different numbers of neutrons. 
What is the evidence that electrons are subatomic particles? - Answer-The nature of the electron is 
i...
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