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MTL 200 Exam Study Guide Solutions

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MTL 200 Exam Study Guide Solutions 6 properties of a solid material - ANSWER-1)Mechanical 2)Electrical 3)Thermal 4)Magnetic 5)Optical 6)Deterioration (chemical reaction) Classification of Metals (5 types) - ANSWER-1)Composed of at least 1 metallic element 2)Atoms arranged orderly 3)Relativ...

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  • November 11, 2024
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MTL 200 Exam Study Guide Solutions


6 properties of a solid material - ANSWER✔✔-1)Mechanical


2)Electrical


3)Thermal


4)Magnetic


5)Optical


6)Deterioration (chemical reaction)


Classification of Metals (5 types) - 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


Classification of Ceramics (4 types) - ANSWER✔✔-1) Compounds between metallic and nonmetallic

elements


2) Commonly (oxides, nitrides, carbides)


3) Relatively stiff and strong


4)Very brittle (high susceptibility to fractures)



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Classification of Polymers (6 types) - ANSWER✔✔-1)The family of plastic and rubbers


2)Large molecular structures


3)Can be ductile/pliable


4)Known to soften/decompose over time


5)Low electric conductivity


6)Nonmegnetic


Classification of Composites (2 types) - ANSWER✔✔-1)Come from 2 or more types of material (metals,

ceramics, polymers)


2)Designed to achieve multiple properties


Semiconductors - ANSWER✔✔-Both an insulator and a conductor


Electrons in Atoms - ANSWER✔✔-Electrons only have specific values of energy, if energy levels change,

electrons must make a quantum jump


How do electrons quantum jump? (2 points) - ANSWER✔✔-1)Either by absorbing energy and moving up


2)Or by releasing energy and moving down


Quantum Numbers (4 parameters to describe e) - ANSWER✔✔-1)Size


2)Shape


3)Spatial orientation


4)Probability density


Principle Quantum Number 1 (shell letter, and sub-shell) - ANSWER✔✔-Shell letter K

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Sub-shell S


Principle Quantum Number 2 (shell letter, and sub-shell) - ANSWER✔✔-Shell letter L


Sub-shell s,p


Principle Quantum Number 3 (shell letter, and sub-shell) - ANSWER✔✔-Shell letter M


Sub-shell s,p,d


Principle Quantum Number 4 (shell letter, and sub-shell) - ANSWER✔✔-Shell letter N


Sub-shell s,p,d,f


Electron Spin Movement - ANSWER✔✔-+1/2, -1/2


Ground State - ANSWER✔✔-electrons occupy all the lowest energy states


Hydrogen ground state - ANSWER✔✔-1s^1


Helium - ANSWER✔✔-1s^2


Sodium - ANSWER✔✔-1s^2,2s^2,2p^6,3s^1


Electropositive - ANSWER✔✔-elements capable of giving up electrons


Electronegative - ANSWER✔✔-elements ready to accept electrons


Bonding Energy - ANSWER✔✔-Eo=energy required to separate the atoms


The Primary Bond (3 types) - ANSWER✔✔-1)Ionic


2)Covalent


3)Metallic


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