ore alence adius C V R The CVR Periodic Table

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Presentation transcript:

ore alence adius C V R The CVR Periodic Table A. The core, valence, radius (CVR) model separates the ______ level electrons from the ____ level electrons. valence inner

ore alence adius C V R The CVR Periodic Table 1. To determine the effective _______charge (Zeff) on an electron, _______ the number of inner shell electrons from the number of protons in the nucleus. nuclear subtract

ore alence adius C V R The CVR Periodic Table a. Effective nuclear charge is also referred to as effective ____ charge. core

ore alence adius C V R The CVR Periodic Table 2. The _______ level is the outermost level of electrons and is most important in determining an atom’s chemistry. valence

ore alence adius C V R The CVR Periodic Table 3. The atomic ______ of an atom is the distance from the center of the nucleus to the outer edge of the electron cloud. radius

ore alence adius C V R The CVR Periodic Table a. The atomic radius is determined in large part by the pull of the positive _______ in the nucleus and the number of main ______ levels. charges energy

ore alence adius C V R The CVR Periodic Table b. The energy of attraction (or repulsion when the charges are the same) is governed by _________ law, where Q1 and Q2 are the charges, and r is the distance between those charges Coulomb’s

ore alence adius C V R The CVR Periodic Table 1. As the effective core charge increases across a period , the force on the valence electrons ________. Increases

ore alence adius C V R The CVR Periodic Table 2. As the distance over which the effective core charge must pull increases (as number of energy levels increase), the force on the valence electrons ________. decreases

ore alence adius C V R The CVR Periodic Table B. The resulting model simplifies the depiction of the atom and focuses on the _______ electrons which directly affect the chemistry of the atom. valence chemistry

ore alence adius C V R +2 + + + + + + + + + + + + Crust Magnesium

+ +2 + + + + + + + Magnesium