How does each column of the periodic table relate to electron configuration?

1 Answer
anor277
Feb 6, 2017

For main group elements, the column, the Group number..........

Explanation:

"For main group elements, the column, the Group number""........represents the number of valence electrons."

Hydrogen is in "Group I", and has the one valence electron. Chlorine is in "Group VII", and has SEVEN valence electrons.

The "Group number" also represents the maximum oxidation number that the element can attain. To take chlorine again, this element can exhibit a +VII oxidation state, i.e. in ClO_4^-, and cannot be further oxidized.

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