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.
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.
how many protons does the carbonate ion have?
An oxide ion (O²⁻) has a charge of negative 2, meaning it has gained two extra electrons compared to its neutral state. A neutral oxygen atom has 8 protons, which is the atomic number of oxygen. Therefore, the oxide ion still has 8 protons, regardless of its charge.
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?