MTL 200 certification ASSESSMENT GUIDE
2025|MOST COMMON QUESTIONS WITH
CORRECTLY VERIFIED ANSWERS (the latest
ones)|ALREADY A+ GRADED|GUARANTEED
PASS/wishing you success in your studies
Atomic weight is the weighted average of the atomic masses of an atom's naturally occurring
isotopes - True
The smaller the principal quantum number, the higher the energy level. - False
Bonding energy is the energy required to separate two atoms that are chemically bonded to
each other. - True
Ionic bonding is bidirectional. - False
How many atoms are in a FCC - 4
How many atoms are in a BCC - 2
Edge length BCC - 4r/sqrt(3)
Edge length FCC - 2sqrt(2)r
Packing Efficiency BCC - 68%
Packing Efficiency FCC - 74%
Packing Efficiency Hexagonal Cell - 74%
In the section of crystallography directions and planes, the braces {} indicate a family of
equivalent directions. - True
The stacking sequence of the close-packed planes in the hexagonal close-packed (HCP) crystal
structure is ABABABABABABAB... - True
For an edge dislocation, the dislocation along and burgers vector are perpendicular - True
List the three ages of civilization defined by the level of matierias used - Stone, Bronze,
and Iron age
2025|MOST COMMON QUESTIONS WITH
CORRECTLY VERIFIED ANSWERS (the latest
ones)|ALREADY A+ GRADED|GUARANTEED
PASS/wishing you success in your studies
Atomic weight is the weighted average of the atomic masses of an atom's naturally occurring
isotopes - True
The smaller the principal quantum number, the higher the energy level. - False
Bonding energy is the energy required to separate two atoms that are chemically bonded to
each other. - True
Ionic bonding is bidirectional. - False
How many atoms are in a FCC - 4
How many atoms are in a BCC - 2
Edge length BCC - 4r/sqrt(3)
Edge length FCC - 2sqrt(2)r
Packing Efficiency BCC - 68%
Packing Efficiency FCC - 74%
Packing Efficiency Hexagonal Cell - 74%
In the section of crystallography directions and planes, the braces {} indicate a family of
equivalent directions. - True
The stacking sequence of the close-packed planes in the hexagonal close-packed (HCP) crystal
structure is ABABABABABABAB... - True
For an edge dislocation, the dislocation along and burgers vector are perpendicular - True
List the three ages of civilization defined by the level of matierias used - Stone, Bronze,
and Iron age
