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chem vocab.1

chemistry ch. 5 vocab

QuestionAnswer
Electromagnetic radiation a form of energy that exibits wavelike behavior as it travels through space
Frequency (represented by V, the Greek letter nu) the number of waves that pass a given point per second
Amplitude the wave's height from the orgin to a crest, or from the orgin to a trough
Electromagnetic radiation a form of energy that exibits wavelike behavior as it travels through space
Frequency (represented by V, the Greek letter nu) the number of waves that pass a given point per second
Amplitude the wave's height from the orgin to a crest, or from the orgin to a trough
Electromagnetic Spectrum aka (EM spactrum) encompasses all forms of electromagnetic radiation being their frequincies and wavelengths
Wavelength the shortest distance between equivalent points on a continuous wave
Quantum Mechanical Model of the Atom the atomic model on which eletrons are treated as waves is called the wave mechanical model of the atom
Ground State the lowest allowable energy state of an atom
Principal quantum Number's (n) indicates the relative sizes and energies of atomic orbitals
Principal Energy Levels n specifies the atom's major energy levels
De Broglie Equation y=h/mv predicts that all moving particles have wave characteristics
Electron Configuration the arrangement of electrons in an atom
Heisenberg Uncertainty Principle states that it is fundementally impossible to know precisely both the velocity and position of a particle at the same time
Quantum Mechanical Model of the Atom the atomic model on which eletrons are treated as waves is called the wave mechanical model of the atom
Atomic Orbital a three-dimentional region around the nucleus... describes the electron's possible location
Principal quantum Number's (n) indicates the relative sizes and energies of atomic orbitals
Principal Energy Levels n specifies the atom's major energy levels
Energy Sublevels the energy levels contained within a principle energy level
Electron Configuration the arrangement of electrons in an atom
Aufbau Principal states that each rlrctron occupies the lowest energy orbital available
Pauli Exclusion Principle states that a maximum of 2 electrons may occupy a single atomic orbital, but only if the electrons have opposite spins
Hund's Rule states that single electrons with the same spin must occupy each equal energy orbital before additional electrons with opposite spins can occupy the same orbitals
Valence Electrons defined as electrons in the atom's outer most orbitals-- generally those orbitals associated with the atom's highest principle energy level
Electron-Dot Structure consist of the element's symbol, which represents the atomic nucleus and inner-level electrons, surrounded by dots representing the atom's valence electrons
Photoelectric Effect electrons, called photoelectrons, are emmitted from a metal's surface when light of a certain frequency shines on the suface
Photon a particle of electromagnetic radiation with no mass that carries a quantum of energy
Atomic Emission Spectrum the ____ of an element id the set of frequencies of the electromagnetic waves emitted by atoms of the element
Planck's Constant value of 6.626x10^-34 jxs , J is the symbol for joule, the SI unit for energy
Quantum the minimum amount of energy that can be gained or lost by an atom
Created by: precious1dog