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17 Cards in this Set
- Front
- Back
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Atomic Weight or Molar Mass (M)
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weight in grams of 1 mole of element - g/mol
also given in amu |
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Mole Equation
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moles = grams/atomic or molecular weight
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Mass Number
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protons + neutrons
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Atomic Number
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protons
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Anions and Cations
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Ions that are negative and positive (respectively)
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Atomic Radius
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nuclear charge increases when moving from left to right - each additional electron is pulled more strongly towards nucleus
with each added shell - atom grows larger - increases from top to bottom |
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Ionization Energy
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the energy necessary to detach an electron from a nucleus
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Electronegativity
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tendency of an atom to attract an electron in a bond that it shares with another atom
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Electron Affinity
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willingness of an atom to accept an additional electron
the energy released when an electron is added to a gaseous atom |
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Bond Length
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the point where the energy level is the lowest
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Plank's Quantum Theory
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electromagnetic energy is quantized
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Planck's Equation for energy
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change in Energy = hf
wavelength = h/mv |
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Formal Charge
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valence electrons - 1/2 bonding - nonbonding
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Percent Composition by Mass
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mass of solute/mass of solution x 100%
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Mole Fraction
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# mol of compound/total mol in system
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Molality
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# mol of solute/kg of solvent
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Normality
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# gram equiv. weight of solute/ liter of solution
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