For a neutral atom to become an ion with a 2 plus charge it must LOSE TWO ELECTRONS.
For an ion with a +2 charge to form it an atom would have to lose 2 electrons.
Mg ^ 2+ :D
Beryllium the element (Be) has a zero charge. Beryllium the ion (Be^2+) as a plus 2 charge.
Sulfide is divalent ion. it is S2-
The charge of the molybdenum ion is +2.
A strontium ion has a charge of +2
loses 2 electrons to form a calcium ion with 2+ charge
All the elements in Group 2A (Mg, Ca, etc.). A charge of 2+ is acquired by these metals in order for a more stable state to be achieved.
Mg ^ 2+ :D
Beryllium the element (Be) has a zero charge. Beryllium the ion (Be^2+) as a plus 2 charge.
the charge of zinc has only one charge which is 2+.
Sulfide is divalent ion. it is S2-
The charge of the molybdenum ion is +2.
A strontium ion has a charge of +2
Alkaline earth metals form cations withe the electrical charge +2.As an exceptional curiosity exist the ion Ca-.
In even moderately strong acid conditions in aqueous solution, a polyatomic phosphate ion with a charge of -3 will add an hydrogen ion with a charge of +1 to form a polyatomic acid phosphate anion with a charge of -2. In equation form, PO4-3 + H+1 -> HPO4-2.
+2
Calcium is in group 2. Therefore it's most probable charge is Ca2+.