+ 2
The calcium cation is (Ca)2+.
The most common electric charge for a calcium cation is +2.
The most common charge of magnesium is +2.
Ba has no charge overall but the Barium ion has a 2+ charge.
Mg-24
The calcium cation is (Ca)2+.
The most common charge for sulfur is -2.
A Magnesium ion has a charge of 2+.
The most common charge for an iodine ion is -1.
-2
The most common electric charge for a calcium cation is +2.
The most common charge of magnesium is +2.
The most common ion for cesium is Cs+ (cesium ion). This ion has a charge of +1.
Ba has no charge overall but the Barium ion has a 2+ charge.
-2 is the most common charge (sulphide ion).
-3
Elements listed in the periodic table of elements are neutral; they do not have a charge. When they undergo chemical reactions they may become charged ions. There is no single most common charge for ions, but the most common are -1, -2, -3, +1, +2 and +3.