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MTL 200 - Midterm 1; Questions and Answers 100% Solved
MTL 200 - Midterm 1; Questions and Answers 100% Solved 1) Energy Transition Correct answer E=hv=hc/lambda 1) structures Correct answer 1. subatomic (atomic) 2. Microscopic (materials) 3. Macroscopic (can be seen ex. building) 1) Quantum model Correct answer size, shape, spatial orientation of e's probability density 1) Primary bonding Correct answer ionic covalent metalli
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MTL 200 Exam; 220 Questions and Answers 100% Solved
MTL 200 Exam; 220 Questions and Answers 100% Solved 6 properties of a solid material Correct answer 1)Mechanical 2)Electrical 3)Thermal 4)Magnetic 5)Optical 6)Deterioration (chemical reaction) Classification of Metals (5 types) Correct answer 1)Composed of at least 1 metallic element 2)Atoms arranged orderly 3)Relatively Dense 4)Relatively Stiff and Strong 5)Good conductors of heat and electricity
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MTL 200 Ryerson Questions and Answers 100% Solved
MTL 200 Ryerson Questions and Answers 100% Solved Atomic weight is the weighted average of the atomic masses of an atom's naturally occurring isotopes Correct answer True The smaller the principal quantum number, the higher the energy level. Correct answer False Bonding energy is the energy required to separate two atoms that are chemically bonded to each other. Correct answer True Ionic bonding is bidirectional. Correct answer False How many atoms are in a FCC Correct answer 4
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MTL200 - Final Exam with Complete Solutions
MTL200 - Final Exam with Complete Solutions What are ceramics? Correct answer Ceramics are elements composed of at least two elements, often more, with complex crystal structures that range from purely ionic to totally covalent. Anisotropy Correct answer directionality of properties What influences the crystal structure of ceramics? Correct answer The electrical charge of ions and the relative sizes of the anion and cation.
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MTL200 - Final Exam with Complete Solutions
MTL200 - Final Exam with Complete Solutions atomic mass vs. atomic weight Correct answer Mass : the sum of Protons and Neutrons of the element. Weight : Weighted avgerage of the isotopes of given element quantum numbers (name, visual meaning, symbol) Correct answer Principle : Shell -- energy level / size (n) Angular Momentum : Subshell -- cloud shape (l) Magnetic : Orbital -- cloud shape variant (m_{l})
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MTL 200 Exam; Questions and Answers 100% Solved
MTL 200 Exam; Questions and Answers 100% Solved Wave Mechanics Correct answer Electron position is based on probability distribution Bohr Model Correct answer Electron positon based on discrete paths 3 Additional Bonding types Correct answer Covalent-ionic, covalent-metallic, metallicionic Polymers Correct answer large compound formed from combinations of many monomers They are covalent Metals Correct answer Elements that are good conductors of electric current and heat. They are metal...
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MTL 200 Exam; Questions and Answers 100% Solved
MTL 200 Exam; Questions and Answers 100% Solved Does the SOLIDUS line represent the boundary between a solid phase region and a 2-phase region with liquid? Correct answer FALSE A phase may be defined as a HOMOGENEOUS PORTION of a system that has UNIFORM physics and chemical properties Correct answer TRUE (T/F) The volume fraction of phases present in a phase diagram can be calculated using the lever rule Correct answer FALSE
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MTL 200 Need to Know; Questions and Answers 100% Solved
MTL 200 Need to Know; Questions and Answers 100% Solved What is an isotope? Correct answer Atoms of the same element that have different numbers of neutrons What is the Pauli Exclusion Principle? Correct answer each electron state can hold no more than two electrons which must have opposite signs What is the Stable Electron Configuration? Correct answer the state within the outermost shell completely filled (ex. inert gases: He, Ne, Ar, etc)
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Mtl 200 Test 2; Questions And Answers 100% Solved
MTL 200 TEST 2; QUESTIONS AND ANSWERS 100% SOLVED Solubility limit is the minimum concentration of solute that may be added without forming a new phase Correct answer False Solidus line normally represents the boundary between a liquid phase region and a two phase region with the liquid [e.g, the boundary L/ (α+L) Correct answer False Eutectic structure forms prior to the primary phase during cooling Correct answer FALSE Non equilibrium cooling results in cored structure Correct answe...
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MTL200 Midterm (Ryerson University); Questions and Answers 100% Solved
MTL200 Midterm (Ryerson University); Questions and Answers 100% Solved What are the three primary material eras? Stone Age, Bronze Age, Iron Age What are the four levels of Material Structures? Subatomic Structures, Atomic Structures, Micro structures, Macro structures What are the three basic materials? Metals, Ceramics and Polymers Advanced Materials semiconductors, biomaterials, smart materials, nanomaterials atomic number the number of protons in the nucleus of an atom, usually equal...
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MTL 200 Exam; Questions and Answers 100% Solved
MTL 200 Exam; Questions and Answers 100% Solved Crystalline Material Correct answer Atoms arranged in a repeating pattern over large distances. Lattice Correct answer Three-dimensional array of points coinciding with atom positions. Unit Cell Correct answer Smallest repeating unit of a lattice, basic building block. Polymorphism Correct answer Presence of multiple crystal structures in a chemical compound. Allotropy Correct answer Presence of multiple crystal structures in a chemical ...
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MTL200 Midterm Exam Questions and Answers 100% Verified
MTL200 Midterm Exam Questions and Answers 100% VerifiedMTL200 Midterm Exam Questions and Answers 100% VerifiedMTL200 Midterm Exam Questions and Answers 100% VerifiedMTL200 Midterm Exam Questions and Answers 100% Verified What are the three primary material eras? - ANSWER-Stone Age, Bronze Age, Iron Age What are the four levels of Material Structures? - ANSWER-Subatomic Structures, Atomic Structures, Micro structures, Macro structures
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