20. The fact that it is an ion has nothing to do with the number of electrons.
how many protons does the carbonate ion have?
The number of protons present in an ion is equivalent to its atomic number.
Eight protons in this ion.
7 protons
The number of protons is 7.
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 answer is 81 protons.
The number of protons is 2.
19
8
16 protons and 18 electrons