
Arturo O. answered 01/08/18
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Elements in the 1st column of the periodic table "like" to loose 1 electron, so an element A become A+.
Elements in the 2nd column of the periodic table like to loose 2 electrons, so an element A become A++.
Elements in the 3rd column of the periodic table like to loose 3 electrons, so an element A become A+++.