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Unformatted text preview: Chem2070 Fall 2011 Homework #5: Due September 30 1. (a) What is the maximum number of electrons in an atom where the highest energy electrons have quantum numbers n = 4 , = 0? (b) Which orbital is filled immediately before each of the following orbitals is filled? (i) 3 p (ii) 4 f (iii) 6 s (iv) 5 d (c) What neutral, ground-state atom has the following orbital-filling diagram? (d) The following orbital-filling diagram represents an excited state rather than a ground state of a neutral atom. Identify the atom and give its ground-state configuration? 2. Consider the subshells 1 s, 2 s, 2 p, 3 s, 3 p and 3 d . Identify all which satisfy the conditions: (a) Has = 2 (b) Can have m =- 1 (c) Is empty in a nitrogen atom in its ground state (d) Is full in a carbon atom in its ground state (e) Contains the outermost atoms in beryllium in its ground state (f) Can contain two electrons with the same value of m s 3. Imagine a universe where the four electron quantum numbers have the same roles as in our universe, except that the quantum number takes on values = 0 , 1 ,...,n + 1 (instead of = 0 , 1 ,...,n,....
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This document was uploaded on 10/26/2011 for the course CHEM 207 at Cornell University (Engineering School).
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