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March 27, 2015

Homework Help: Chemistry

Posted by jamie on Monday, October 6, 2008 at 10:03pm.

Without referring to a periodic table, pick the electron configuration of elements with the following atomic numbers and classify the elements. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.)

(a) 17

(b) 20

(c) 23

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