The quantum mechanical model of the atom and quantum numbers

a

Who discovered the concept of wave-particle duality? (type the letter)

a) Louis De Brogile

b) Erwin Schrödinger

c)Werner Heisenberg

wave particle theory

what theory states that light has properties of particles and particles have properties of waves

b

Who developed the wave equation with 4 variables? (type the letter)

a) Louis De Brogile

b) Erwin Schrödinger

c)Werner Heisenberg

electron

The solution to Schrödinger’’s equation describes a region of probability around the nucleus of an atom in which an _________ is likely to be found

c

Who created the uncertainty principle? (type the letter)

a) Louis De Brogile

b) Erwin Schrödinger

c)Werner Heisenberg

Uncertainty Principle

The ___________ _________states that it is impossible to know the exact position and speed of an electron at a given time.

Quantum Mechanics

_______ _________ uses mathematical equations to describe the wave properties of subatomic particles

orbital

The region around the nucleus where an electron has a high probability of being found is called an ______

yes

Can orbitals overlap?

no

Can orbits overlap?

orbit

Orbit or Orbital?

• 2D

• Electrons are a fixed distance away from nucleus

orbital

Orbit or Orbital?

• 3D

• Electrons are a variable distance from nucleus

• 2 electrons per orbital

principal

Which quantum number?

Determines the size and energy of an orbital

principal

Which quantum number?
Allowed values include 1, 2, 3, to infinite

2n^2

What formula do we use to know the greatest number of electrons possible in each energy level?

Increases

For the principal QN, as n increases, the energy required for an electron to occupy that orbital __________. Additionally, each successive orbital gets larger and electrons with higher energy are less tightly bound to the nucleus.

secondary

Which quantum number?

describes the shape of the orbital

secondary

Which quantum number?
Allowed values: 0 to n-1

spdf

what are the 4 letters (in order of lowest value of l) for secondary QN.

Magnetic

Which quantum number?

Describes the orientation of the orbital relative to other orbitals in the atom

Magnetic

Which quantum number?
Allowed values: -l - +l

Spin

Which quantum number?
Describes the spin of the electron

up

Regarding the spin quantum number, does the electron spin up or down based on the given value:

+1/2

down

Regarding the spin quantum number, does the electron spin up or down based on the given value:
-1/2

Pauli Exclusion Principle

What is this called?

No two electrons in an atom can have the same set of 4 quantum numbers (n, l, ml, and ms)