Quantum Model
What was the model called before we started using the Quantum model?
Bohr Rutherford Model
What is a Quantum number?
4 numbers used to describe a specific electron in an atom
What country did early atomic theory come from?
Greece
What did Aristotle discover?
The 4 elements: Air, Water, Fire, and Earth
What is electron configuration?
shows the location and number of electrons in the electron energy levels of an atom
What diagram helps us draw a perfect Quantum Model?
Lewis Dot Diagram
What does the Quantum number describe?
(n) describes the main energy level or “shell” which corresponds to the periods of the periodic table
What are the 3 types of Radioactive Emissions?
Alpha, Beta, and Gamma
What was Daltons model called?
The Dalton Billiard Ball Model
What helps determine an electron configuration?
An energy-level diagram
What replaces the "orbitals" in a Bohr Rutherford Model to the Quantum Model?
"Clouds" or 3D looking orbitals
Where would n=7 be found on the periodic table?
The last row of the periodic table
What is a Radioisotope?
an isotope that has unstable nucleus and spontaneously decays; emits radioactive gamma rays or subatomic particles
Who created the Blueberry Muffin Model?
JJ Thompson
What is the shorthand electron configuration for the chlorine atom?
(Ne)3s^2 3p^-2
What is the "Uncertainty Principle"?
States that we cannot determine the position AND speed of a given electron with absolute precision
Where does the Quantum number "L" describe?
“ℓ” describes a subshell within a main energy level and are distinguished by their shapes
Planck is considered the founder of what theory?
Quantum Theory
Who created the classic theory of light?
James Maxwell
Where can you find the S shaped orbitals?
In the first 2 columns of the periodic table on the left hand side
What was Bohr's diagram missing?
I did not explain the stability of an atom
What does the Quantum number “Ml” describe?
Describes orientation of the subshells s, p, d, and f
What is Radioactivity?
The spontaneous decay of the nucleus of an atom
Who discovered the Photelectric Effect?
Heinrich Hertz
What is the element that has atoms with the following electron configuration: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^8
The element is nickle