Wednesday
August 27, 2014

Homework Help: Chem

Posted by Lucas on Sunday, October 10, 2010 at 11:37pm.

Using condensed electron configurations, give reactions showing the formation of the common ions of the following elements. (Type your answers in the following order. In the first box enter your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2. For second box enter the number of electrons and if there are no electrons enter 0. For the third box type your answer in the format of [NH4]+ for NH4+ or [Mg]2+ for Mg2+. Boxes four and five have the same format as the first and second box. Give the equation for the smaller charged ion first.)

K (Z = 19)
K( ) + ( ) e- arrow ( ) ( ) + ( ) e-
I (Z = 53)
I ( ) + ( ) e- arrow ( ) ( ) + ( ) e-
(c) Pb (Z = 82)
Pb ( ) + ( ) e- arrow ( ) ( ) + ( ) e-
Pb ( ) + ( ) e- arrow ( ) ( ) + ( ) e-

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