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29 Cards in this Set
- Front
- Back
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discrete spectrum
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a spectrum containing specific wave lengths of light orginatino from the hot gaseous atoms of an element
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continuous spectrum
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the visible spectrup whene one color blends gradually into another. a spectrum containing all wavelengths of visalbe light
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wavelength
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the distance between two adjecent peaks in a wave
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bohr's model
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a model of the atom in which electrons orbit around a central
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quantized energy levels
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an energy level with a definite and measurble level
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principal quantum number
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a number that corresponds to a particular shell occupied by the electrons in an atom
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ground state
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the lowest available energy lecel in an atom
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excited state
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an energy level higher tan the lowest availble energy level
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wave mechanics
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a complex mathematical approach to the electrons in an atom that considers the electon as having both a particle and a wave nature
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orbital
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a regoin of space where there is the highest probability of finding a particular electron. there are four types of orbitals and each has a charcteristic shape
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shells
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the principal energy lecel which contains one or more subshells
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sub shell
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the orbitals of the same type withen a shell the subshells are named for the types of orbitals
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electron configuration
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the designation of all of te electons in an atom into specific shells and sushells
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aufbua princple
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a rule that states that electons fill the lowest avalible energy level first
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obrital diagrams
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the representation of specific orbitals of a subshell as boxes and the electons as arrows in boxes
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pauli exclusion princple
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a rule that states that no two electrons can have the same spin in the same orbital.
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hund's rule
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a rule that states that electrons occupy seperate orbitals with parralell spins if possible
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ionization energy
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the energy required to remove an electron from a gaseous atom or ion
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electron affinity
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the energy released when an electron is added
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octet rule
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a rule that states that atoms of representative elements form bonds so as to have access to eight electrons
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lewis dot symbols
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the repersentation of an element by its symbol with its valence electrons as dots
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valence electrons
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an outer s or p electron in the atom of a representative atom
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lattice
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a three dimensional array of ions or molecules in a solid crystal
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ionic bonds
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the electrostatic force holding the positive and negitive ions together in an ionic compound
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covalent bond
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the force that bonds two atoms together by a shared pair of electrons
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double bond/triple bonds
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the shareing of 2/3 pairs of electrons
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resonance structures
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a lewis structure showing one of two or more possible lewis structures
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resonance hybrid
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the actual structure of the molecule as implied by the resonance stucture
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electronegitivity
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the ability of the atoms of an element to attract electons in a covalent bonds
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