ME240 Quiz 1 Review
9
An element that has the electron configuration 1s2 2s2 2p5 has how many electrons? Enter numeric values only.
18
An element with the electron configuration 1s22s22p63s23p6 has how many electrons?
Potassium
Choose the name for the element that has 23 neutrons and a mass number of 42. Potassium Vanadium Scandium Molybdenum
E
Ideally speaking, bonds tend to form between two particles such that they are separated by a distance where _______ net force is exerted on them, and their overall energy is _________. A.zero, maximized B. a negative, minimized C. a positive, minimized D. a positive, maximized E. zero, minimized F. a negative, maximized
Alkali metal
Match the electron structure below with the element type it represents. 1s2 2s2 2p6 3s2 3p6 4s1 Halogen Transition metal Inert gas Alkaline earth metal Alkali metal
Alkali metal
Match the electron structure below with the element type it represents. 1s2 2s2 2p6 3s2 3p6 4s1 Transition metal Halogen Alkali metal Alkaline earth metal Inert gas
melting temperature
Materials Science and Engineering is the study of material behavior & performance and how this is simultaneously related to structure, properties, and processing. Which of the following is the best example of a material property? Polycrystalline Melting Temperature Annealing Sintering Casting
Casting
Materials Science and Engineering is the study of material behavior & performance and how this is simultaneously related to structure, properties, and processing. Which of the following is the best example of material processing? Crystalline Brittle Glassy Casting Electrical Conductivity
Annealing
Materials Science and Engineering is the study of material behavior & performance and how this is simultaneously related to structure, properties, and processing. Which of the following is the best example of material processing? Crystalline Glassy Annealing Elastic Modulus Thermal Expansion Coefficient
Single-phase
Materials Science and Engineering is the study of material behavior & performance and how this is simultaneously related to structure, properties, and processing. Which of the following is the best example of material structure? Elastic Modulus Single-phase Sintering Brittle Magnetic Permeability
Crystalline
Materials Science and Engineering is the study of material behavior & performance and how this is simultaneously related to structure, properties, and processing. Which of the following is the best example of material structure? Annealing Crystalline Elastic Modulus Brittle Thermal Expansion Coefficient
A C
Please select statements that satisfy the Pauli exclusion principle. A. Electron state can hold no more than two electrons. B. Electron state can hold no more than four electrons. C. Electrons with the same state must have opposite spins. D. Electrons with the same state must have the same spins.
Electrons and Protons
The atomic number of an electrically neutral atom is equal to the number of: Choose all that apply. Neutrons Electrons Protons
Metallic
What is the predominant type of bonding for titanium (Ti)?
A
What type(s) of bonding would be expected for rubber? A. Covalent bonding with some van der Waals bonding B. Ionic bonding C. van der Waals bonding D. Metallic bonding
A
What type(s) of bonding would be expected for rubber? A. Covalent bonding with some van der Waals bonding B. Metallic bonding C. van der Waals bonding D. Ionic bonding
All of these
Which of the following materials may form crystalline solids? All the these Polymers None of the these Ceramics Metals
Metallic
_______ bonding is similar to ionic bonding, except there are no high-electronegativity atoms present to accept any electrons that the present atoms are willing to donate.
Covalent, VDW
_________ bonds are responsible for binding atoms together within a molecule of propane, whereas ________ bonds bind separate propane molecules together in a condensed state (liquid or crystal).
Covalent
_________ bonds are the only primary bonds that are directionally dependent. Ionic Metallic Van der Waals Covalent