Lesson 5.2: The Quantum Model Of An Atom Flashcards
Who proposed that light and atoms might exhibit the same properties?
Louise de Broglie and Erwin Schrödinger
Who came up with a new model for the hydrogen atom through the use of mathematical concepts?
Schödinger
Who formulated the “uncertainty principle”?
Werner Heisenberg
The uncertainty principle states…..
“It is important to determine both the momentum and the position of an electron at the same time accurately”
Rapidly orbiting electrons can be represented by?
Electron clouds
Believed to be the most mysterious particle in an atom because of its location.
Electron
The location on atom depends on the…?
Amount of energy it has
Lowest energy/energy state
Ground state
The highest energy state farthest from the nucleus.
Excited state
Last/the energy level where the last distributed electron(s) are located is…?
The valence shell
Closed shell
Complete valence electrons tend to be stable
A region around the nucleus of an atom.
Orbital
SPDF
Sharp, principal, diffused, fundamental
Electron configuration
A shorthand representation of how electrons are located within orbitals, levels, and sublevels
The electrons occupying the highest energy level in an atom are called..?
Valence electrons
This principle states that only a maximum of two electrons can occupy an orbital
Pauli Exclusion Principle
This principle states that for a set of orbitals, one electron must fill up each orbital until all the orbitals contain one electron with parallel spin.
Hund’s Rule
Principle states that electrons fill first the orbitals of the lowest energy until any added electron occupy the available orbital of higher energy.
Aufbau (a German word that means “building up or construction”)
Paramagnetism
The atom that contains unpaired electrons, drawn to a magnetic field
Diamagnetic
All electrons of the atom are paired, weakly repelled by magnetic field
Quantum Numbers
Used to describe the position and energy of electrons in an orbit
The new model of the atom of Schrödinger that can be applicable to other atoms.
The Quantum (wave) Mechanical Model of the Atom
