
Interpretation:
The noble gas which is closest to magnesium in the periodic table needs to be determined. The method by which magnesium can get the same electronic configuration of the nearest noble gas needs to be explained.
Concept introduction:
Noble gases have very stable electronic configuration with complete octets. Some of the noble gases are He, Ne, Ar, Kr, Xe and Rn.

Answer to Problem 6E
Neon (Ne) is closest to magnesium. Two electrons must be removed from magnesium to make the same electronic configuration as that of neon.
Explanation of Solution
Magnesium has
Two electrons must be removed from magnesium to make the electronic configuration similar to neon.
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