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Wave Mechanical Model
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Atomic Theory
By: Alexandria Ybarra, Jerone Mendosa and Kalani Patrick
Electron Configuration
Atomic size
The distribution of electrons of an atom or molecule in atomic or molecular orbitals.
a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons.
Valence Electrons
Orbital Configuration
Quantized energy levels
Pauli Exclusion Principle
an electron that is associated with an atom, and that can participate in the formation of a chemical bond
the distribution of electrons of an atom or molecule
a physical quantity can have only certain discrete values as well as an electrical charge
States that in an atom or molecule, no two electrons can have the same four electronic quantum numbers; an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.
Core Electrons
the electrons in an atom that are not valence
Aufbau Principle
Wavelength
Photon
Frequency
States that, hypothetically, electrons orbiting one or more atoms fill the lowest available energy levels before filling higher levels
the distance between successive crests of a wave
a particle representing a quantum of light or other electromagnetic radiation
the rate at which something occurs or is repeated over a particular period of time
Wave Mechanical Model
Ionization energy
An atom that is mostly space with a small, very dense, centrally located nucleus that contains positively charged protons and neutrally charged neutrons and is surrounded by negatively charged electrons located in orbitals in the electron cloud.
Hund's Rule
Amplitude
energy needed to remove the outermost, or highest energy
States that every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin.
the maximum extent of a vibration or oscillation
Orbital
The actual patterns of electron density that may be formed in an atom by one or more electrons, and that can be represented as a wave function.
Principle Energy Levels
The energy level denoted by the principal quantum number n. The first element in a period of the Periodic Table introduces a new principle energy level.
Electron affinity
The change in energy
Sublevels
An electron orbital with characteristic shapes which can be used to explain and predict the chemical bonds that atoms can form; designated s, p, d or f.
Electronegtivity
measure of the tendency of an atom to attract a bonding pair of electrons.