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**Unformatted text preview: **Question 6 For n =4, l=2 thus m l = 2, 1, 0, -1, -2 (5 possible values) Question 7 Sr [Kr]5s 2 Ca 2+ [Ar] or 1s 2 2s 2 2p 6 3s 2 3p 6 Question 8 Answer: In the Hydrogen atom (z=1) there are no effects from shielding or e-/e- repulsion as in many e- atoms. Bonus For this particular key the lowest value of n =3, but if you started with n=2 then it’s also correct. Given the following set of rules: Noble Gases 2, 6, 12, 20 Halogens 5, 11, 19...

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- Fall '08
- Edwards
- Atom, 1s 2s