Write the electron configuration of magnesium 1Z = 122. Show how many electrons a magnesium atom must lose to form an ion with a filled shell (eight electrons) and write the configuration of the ion. Explain the reason for the ion’s charge, and write the ion’s symbol.

Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter7: Chemical Bonding And Molecular Geometry
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Problem 8E: Write the electron configuration for the monatomic ions formed from the following elements (which...
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Write the electron configuration of magnesium 1Z = 122. Show how many electrons a magnesium atom must lose to form an ion with a filled shell (eight electrons) and write the configuration of the ion. Explain the reason for the ion’s charge, and write the ion’s symbol.

Expert Solution
Step 1

The atomic no. of Magnesium is Z = 12 and its symbol is Mg.

The electronic configuration of Mg is:

12Mg-1s2 2s2 2p6 3s2

It has 12 electrons and 12 protons.

No. of valence shell electrons in Mg are 2.

 

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