it varies. since its a transition metal, it can have pretty much any positive charge since its a cation. however the most common charges are 2+ and 4+ No: it should be +1 or +2
Correction added:the net charge of a single sulfide ion should be 2- .... hope this helps\ Nigguuuhzz
As there are two of them, the charge on the copper ion is 1+ to balance the charge of the oxygen (2-).
Cu2+
The charge of ion selenide is 2-.
A net postive charge
A sodium atom has a net charge of zero. A sodium ion has a net charge of 1+.
the net charge of a single sulfide ion should be 2- .... hope this helps\ Nigguuuhzz
A copper ions has a positive charge, most commonly 2+.
Gained or lost electron(s).
net negative charge
+6
As there are two of them, the charge on the copper ion is 1+ to balance the charge of the oxygen (2-).
Fjfj
The net charge is the total amount of charge that the ion will have. So you will find out the charge of each group and add them all together for the net charge.
+2
Cu2+
Since Oxygen has an ion charge of -2 & Copper has a 2 as a subscript, it means that Copper's ion charge will be +1. Cu2O = Copper (I) Oxide