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Chem 1 TCC Frazee Test 4
Chem 1 TCC Frazee Test 4
10
Chemistry
04/28/2010

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Term
Inverse relationship between frequency and wavelength
Definition
C(Speed of light) = Lambda(Wavelength)* V (nu: the frequency)
Term
Energy of a photon (packet)
Definition
Energy = h(planks constant) * h (frequency)
Term
De Broglie equation, used to relate wavelength of a particle to is mass and velocity
Definition
Lambda(wavelength) = h(planks constant) /(mass * velocity)
Term
Z Effective
Definition
The inner electrons partially shield the outer valance electrons from the pull of the protons. Protons - Non Valence electrons = Zeff
Term
Zeff Trends
Definition
Effective charge increase as we move across the rows of the periodic table. Zeff increase slightly as we go down the table.
Term
Atomic Radii
Definition
With in each column, atomic radius tends to increase from top to bottom because of increases of quantum number. Within each period the radius decreases from left to right because of Zeff.
Term
Isoelectronic series
Definition
a group of ions all containing the same number of electrons.
Term
Ionization energy
Definition
Minimum energy required to remove an electron from the ground state. For example the first ionization energy is the energy needed to remove the first electron from a neutral atom.

Na-->Na+ + e-
Term
Trends in Ionization Energy
Definition
With each row of the table I1 increases with atomic number. The alkali show the lowest while noble gases show the highest. With each group the ionization energy generally decreases with increasing atomic number.
Term
Electron Affinity
Definition
Energy change that occurs when electron is added. The opposite of an ionization energy.