National University
CAHINORC - INORGANIC AND ORGANIC CHEMISTRY [LEC]
NUR255
Name: Zardy Gabriel N. Andaya
CORNELL NOTES 2.2
LEARNING OBJECTIVES Notes
Explain the different quantum
numbers.
Write electronic configuration
of elements and use it to
predict the position of the ELECTRONS AND ATOMIC ORBITALS
element in the periodic table.
Electrons reside in different
energy levels (N1 – N7 shells),
How many energy levels can an
wherein the energy levels
electron reside in?
correspond to the horizontal rows
in the periodic table.
How many natural elements
In the different energy levels, N7
are there in the periodic table
is the highest energy level while
of elements?
N1 is the lowest energy level.
What are Atomic Orbitals? Atomic Orbitals or Orbitals
‒ Refers to the areas within
energy level (shells) where
the electrons are located.
Does Orbitals have different
shapes and numbers within a Orbitals have different shapes and
subshell? numbers within a subshell.
What is the Pauli Exclusion The Pauli Exclusion Principle
Principle? states that each orbital can
accommodate 2 electrons
spinning opposite to each other.
REFLECTION
Electrons reside from energy levels of N1 (lowest energy level) to N7
(highest energy level) shells.
The Pauli Exclusion Principle states that each orbital can only
accommodate 2 electrons.
, What is the Heisenberg’s The Heisenberg’s Uncertainty
Uncertainty principle? Principle states that the location
and momentum of an electron
cannot possibly be identified.
NUMBER OF ORBITALS FOR
What is the number of orbitals EACH SHELL:
for each shell?
S shell - 1 orbital = 2
electrons
P shell - 3 orbitals = 6
electrons
D shell - 5 orbitals = 10
electrons
F shell - 7 orbitals = 14
What number of orbitals does electrons, wherein energy
energy level 5 and 7 occupies? level of 5 and 7 has the
same accommodation.
QUANTUM NUMBERS
Quantum Numbers
What are Quantum Numbers? ‒ These are used to describe
the unique quantum state
of an electron in an atom.
What does Quantum Numbers Quantum numbers help define
define? orbitals size, shape, and
orientation in space.
TYPES OF QUANTUM
What are the types of NUMBERS:
Quantum Numbers? Principal Quantum
Number
Angular Momentum
(Azimuthal) Quantum
Number
Magnetic Quantum
Number (��)
Spin Quantum Number
(��)
REFLECTION
The Heisenberg’s Uncertainty Principle states that the movement and
location of the electron in perfect accuracy.
Quantum Numbers are used to describe the unique quantum state of an
electron in an atom, regarding its size, shape, and orientation in space.
CAHINORC - INORGANIC AND ORGANIC CHEMISTRY [LEC]
NUR255
Name: Zardy Gabriel N. Andaya
CORNELL NOTES 2.2
LEARNING OBJECTIVES Notes
Explain the different quantum
numbers.
Write electronic configuration
of elements and use it to
predict the position of the ELECTRONS AND ATOMIC ORBITALS
element in the periodic table.
Electrons reside in different
energy levels (N1 – N7 shells),
How many energy levels can an
wherein the energy levels
electron reside in?
correspond to the horizontal rows
in the periodic table.
How many natural elements
In the different energy levels, N7
are there in the periodic table
is the highest energy level while
of elements?
N1 is the lowest energy level.
What are Atomic Orbitals? Atomic Orbitals or Orbitals
‒ Refers to the areas within
energy level (shells) where
the electrons are located.
Does Orbitals have different
shapes and numbers within a Orbitals have different shapes and
subshell? numbers within a subshell.
What is the Pauli Exclusion The Pauli Exclusion Principle
Principle? states that each orbital can
accommodate 2 electrons
spinning opposite to each other.
REFLECTION
Electrons reside from energy levels of N1 (lowest energy level) to N7
(highest energy level) shells.
The Pauli Exclusion Principle states that each orbital can only
accommodate 2 electrons.
, What is the Heisenberg’s The Heisenberg’s Uncertainty
Uncertainty principle? Principle states that the location
and momentum of an electron
cannot possibly be identified.
NUMBER OF ORBITALS FOR
What is the number of orbitals EACH SHELL:
for each shell?
S shell - 1 orbital = 2
electrons
P shell - 3 orbitals = 6
electrons
D shell - 5 orbitals = 10
electrons
F shell - 7 orbitals = 14
What number of orbitals does electrons, wherein energy
energy level 5 and 7 occupies? level of 5 and 7 has the
same accommodation.
QUANTUM NUMBERS
Quantum Numbers
What are Quantum Numbers? ‒ These are used to describe
the unique quantum state
of an electron in an atom.
What does Quantum Numbers Quantum numbers help define
define? orbitals size, shape, and
orientation in space.
TYPES OF QUANTUM
What are the types of NUMBERS:
Quantum Numbers? Principal Quantum
Number
Angular Momentum
(Azimuthal) Quantum
Number
Magnetic Quantum
Number (��)
Spin Quantum Number
(��)
REFLECTION
The Heisenberg’s Uncertainty Principle states that the movement and
location of the electron in perfect accuracy.
Quantum Numbers are used to describe the unique quantum state of an
electron in an atom, regarding its size, shape, and orientation in space.
