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MTL200 Midterm Mostly Tested
Questions and Correct Answers
(100% Pass)
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 equals the
number of neutrons
Master01 | November, 2024/2025 | Latest update
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Isotope
✓ Atoms of the same element that have different numbers of neutrons
formula for atomic mass
✓ Atomic Number + Neutrons
mole
✓ the SI base unit used to measure the amount of a substance 6.022 x
10^23
Bohr's Atomic Model
✓ Atoms have levels surrounding the nucleus where electrons are found.
Levels can hold different amounts of electrons depending on their
distance from the nucleus.
Wave-Mechanical Model [Schrodinger's Model]
✓ Modern model of the atom, atoms have electrons in "orbitals" that are
like clouds around the nucleus
Quantum Numbers
Master01 | November, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ A set of four numbers that specify the properties of atomic orbitals and
the properties of electrons in orbitals
Principal Quantum Number (s)
✓ symbolized by n, indicates the main energy level/shell occupied by the
electron. N is the row in the periodic table
Secondary Quantum Number
✓ symbol = l; tells which sublevel the electron is on and determines the
shape of the orbital; sublevels are repetitively numbered and also
lettered
Valence Electrons
✓ The electrons in the outermost shell, which participate in the bonding
between atoms.
Pauli Exclusion Principle
✓ An atomic orbital may describe at most two electrons, each with
opposite spin direction
Bonding Energy
Master01 | November, 2024/2025 | Latest update
MTL200 Midterm Mostly Tested
Questions and Correct Answers
(100% Pass)
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 equals the
number of neutrons
Master01 | November, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
Isotope
✓ Atoms of the same element that have different numbers of neutrons
formula for atomic mass
✓ Atomic Number + Neutrons
mole
✓ the SI base unit used to measure the amount of a substance 6.022 x
10^23
Bohr's Atomic Model
✓ Atoms have levels surrounding the nucleus where electrons are found.
Levels can hold different amounts of electrons depending on their
distance from the nucleus.
Wave-Mechanical Model [Schrodinger's Model]
✓ Modern model of the atom, atoms have electrons in "orbitals" that are
like clouds around the nucleus
Quantum Numbers
Master01 | November, 2024/2025 | Latest update
, 1|Page | © copyright 2024/2025 | Grade A+
✓ A set of four numbers that specify the properties of atomic orbitals and
the properties of electrons in orbitals
Principal Quantum Number (s)
✓ symbolized by n, indicates the main energy level/shell occupied by the
electron. N is the row in the periodic table
Secondary Quantum Number
✓ symbol = l; tells which sublevel the electron is on and determines the
shape of the orbital; sublevels are repetitively numbered and also
lettered
Valence Electrons
✓ The electrons in the outermost shell, which participate in the bonding
between atoms.
Pauli Exclusion Principle
✓ An atomic orbital may describe at most two electrons, each with
opposite spin direction
Bonding Energy
Master01 | November, 2024/2025 | Latest update
