Bohr Model, Quantum Model, Quantum Mechanics Flashcards
Pattern of lines emitted by an element-containing light as it passes through a prism
Line spectrum
3 postulates of the Bohr’s model of an atom
- Electron can only occupy a certain orbits (certain energies)
- Energy in permitted orbits have “allowed” or “quantized” energies
- Energy is only absorbed/emitted in such a way as to move an electron from one allowed energy state to another.
Scientist that proposed matter has wave properties; observable for small pieces such as electrons
De Broglie
In λ = h/mv, wavelength is ______ proportional to the mass of a particle.
inversely
The wave-particle duality limits that we cannot know the location and momentum of the particle at the same time.
Heisenberg’s Uncertainty Principle
Theory that treats electrons as both a wave and a particle
Quantum mechanics
The modern atomic model is called the ______.
electron cloud model
In Schrödinger equation, the electron’s location in a 3D space is described using the ______.
Probability density
Attempt to describe an electron’s location as electron clouds or probabilities
Orbitals
Atomic Mass Units (amu) is equivalent to ______.
1/12 of the mass of a C12 atom
4 quantum numbers
Principal (n)
Angular Momentum (l)
Magnetic (ml)
Magnetic Spin (ms)
Describes the energy level or shell
Principal
Describes shape of orbital, subshell
Angular Momentum
List the 4 subshell designations in angular momentum quantum number
s=0
p=1
d=2
f=3
Describes the possible orientation in 3D space
Magnetic quantum number
