The Sulphate ion
the charge is 4 2+C+3(-2)=0 C=4
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selenium has a -2 charge. when it forms a compound with another atom the charge of the compound should be zero unless it has a cahrge in its equation. when compounds form they try to be in the most stable state which is when all their valance elctrons are full which means the charge is zero.
If the ion is positive, then the loss of an electron will result in the ion having one greater positive charge. (A +3 ion will be +4.) If the ion is negative, then the loss of an electron will result in the ion being one less negative than it was previously. (A -4 ion wil be -3. A -1 ion will be neutral and have a zero charge.)
This formula is itself an ion with -2 charge. It has 2 carbon atoms and 4 oxygen atoms per ion. An oxalate ion has six atoms.
The charge of the Pb ion can be either +2 or +3.
Lead being a transition metal has two possible charges: +2 or +4.
AnswerCO32-, a negative charge of two. Formula of carbonate ion is:CO32-CO3 2-
the charge is 4 2+C+3(-2)=0 C=4
Platinous(2+) and platinic(4+)
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Beryllium is element 4, so the "neutral" atom would have 4 protons and 4 electrons. In order to have a "-2" charge, it would need 6 electrons.
Ions have a charge therefore (4) is an Ion.
Oxygen has a charge of -2, so the oxidation number of lead is Pb+2
Lead's ionic charge is variable. It is either +2 or +4 depending on the properties of the anions. These charges can also be referred to as "common ionic charge". Example of Pb+2 ionic charge: Lead(II) phosphide Pb+2 and P-3 Pb3P2 Example of Pb+4 ionic charge: Lead(IV) Sulfate Pb+4 and (SO4) -2 Pb2(SO4)4 simplified -> Pb(SO4)2
+2 and +4 charges
the atoms make up carbonate ion and its charge its 4+.