MTL 200 Ryerson Exam Questions &
Answers (Grade A+)
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
How many atoms are in a BCC -
correct answer ✅2
, MTL 200 Ryerson Exam Questions &
Answers (Grade A+)
Edge length BCC -
correct answer ✅4r/sqrt(3)
Edge length FCC -
correct answer ✅2sqrt(2)r
Packing Efficiency BCC -
correct answer ✅68%
Packing Efficiency FCC -
correct answer ✅74%
Packing Efficiency Hexagonal Cell -
correct answer ✅74%
In the section of crystallography directions and planes, the braces {}
indicate a family of equivalent directions. -
correct answer ✅True
The stacking sequence of the close-packed planes in the hexagonal
close-packed (HCP) crystal structure is ABABABABABABAB... -
correct answer ✅True
Answers (Grade A+)
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
How many atoms are in a BCC -
correct answer ✅2
, MTL 200 Ryerson Exam Questions &
Answers (Grade A+)
Edge length BCC -
correct answer ✅4r/sqrt(3)
Edge length FCC -
correct answer ✅2sqrt(2)r
Packing Efficiency BCC -
correct answer ✅68%
Packing Efficiency FCC -
correct answer ✅74%
Packing Efficiency Hexagonal Cell -
correct answer ✅74%
In the section of crystallography directions and planes, the braces {}
indicate a family of equivalent directions. -
correct answer ✅True
The stacking sequence of the close-packed planes in the hexagonal
close-packed (HCP) crystal structure is ABABABABABABAB... -
correct answer ✅True
