8
An element's atomic number gives its number of protons. Oxygen's atomic number is 8. Thus, it has 8 protons.
An oxide ion has 8 protons. This is because it is an oxygen atom that has gained 2 electrons to become negatively charged. The number of protons remains the same as the number of protons in a neutral oxygen atom.
CO3 Carbon - 6 protons Oxygen - 8 protons 6 + (8*3) = 30 protons. Therefore carbonate ion has 30 protons.
The hydroxide ion is OH-. There is one proton in a hydrogen atom and eight in an oxygen atom. Therefore, there are 9 protons in a hydroxide ion.
An oxygen ion with a charge of -2 has 8 protons, 10 neutrons, and 10 electrons. The number of protons and neutrons remains the same as a regular oxygen atom (8 and 8, respectively), but the number of electrons increases by two to accommodate the charge.
how many protons does the carbonate ion have?
The total charge on an oxygen ion with 8 protons and 10 electrons is +2, because oxygen normally has 8 protons and 8 electrons, resulting in a neutral charge. Adding 2 extra electrons gives a net charge of -2.
The thing that separates one element from the other is how many protons the nucleus has. It doesn't matter what the superscript is. Therefore O2- will have 8 protons but 10 electrons instead of 8.
Since oxygen is not a metal, its ions are not normally written with Roman numbers suffixed, but an oxide ion, with formula O-2, contains 10 electrons.
O2- ion has a total of 10 electrons.
how many protons does the carbonate ion have?
The oxygen atom and oxide ion have the same number of protons, which is 8. The oxide ion, however, has gained two electrons, giving it a charge of -2, whereas the oxygen atom is neutral.