Ionic Formula for Carbon-12 Ion: C4+ or C4-?

In summary, the carbon-12 ion has 4 electrons in its 2nd energy level, making it C4+. When bonding with oxygen, the carbon ion must be positive in order to bond with the negative oxygen ion. Carbon monoxide is a neutral molecule with no ionic charge, as the formal charges of the carbon and oxygen cancel each other out. The oxidation number of carbon depends on the specific formula, with carbon dioxide being +4 and carbon monoxide being +2.
  • #1

FeDeX_LaTeX

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Hello;

What is the ionic formula for a carbon-12 ion? It has 4 electrons in its 2nd shell with a capacity of 4, so does that make it C4+ or C4-? I think that it is C4+, because in order for it to bond with the oxygen molecule, O2, it must be positive, as the oxygen ion is negative... is this reasoning correct?

Also, if I get carbon monoxide, CO, is that not CO2+? Because carbon has a charge of +4 and oxygen a charge of -2.

Thanks.
 
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  • #2
To answer your question about the carbon monoxide, the carbon is triple bonded to the oxygen, giving the oxygen a formal charge of +1, and the carbon a formal charge of -1, the charges cancel (its neutral), that is why there is no ionic charge on a carbon monoxide molecule.
I am not sure what you mean by the carbon-12 ion problem. As far as I remember, carbon-12 simply means it is a carbon molecule with 6 protons and 6 neutrons, that is why it is called carbon-12, 6+6=12. You are partially correct in saying carbon has 4 electrons in its second shell, it actually has 4 electrons in its second energy level. In the second energy level, the first 2 electrons are in the S orbital, and the last 2 are in the P orbitals.
When carbon bonds with 2 oxygens, it is a similar story as to CO, except the oxygens are both double bonded to carbon, having no formal charges on any of the atoms, are all of there octets are satisfied.
 
  • #3
CO is a molecule, not a polyatomic ion. To figure out the oxidation numbers of the C and O, you begin with the fact that O is -2, and you know that the total has to be zero for any molecule, therefore the oxidation number for C must be +2.

The oxidation number of carbon depends on formula. If it were carbon dioxide instead , we would have to begin with oxygen is -2, and you have two of them, making -4, and the total for the molecule has to be zero, therefore carbon is +4.
 

1. What is the ionic formula for carbon-12 ion?

The ionic formula for carbon-12 ion can be written as C4+ or C4-, depending on the charge of the ion.

2. How is the ionic charge of carbon-12 ion determined?

The ionic charge of carbon-12 ion is determined by the number of electrons gained or lost by the atom. If it gains 4 electrons, it will have a charge of -4, and if it loses 4 electrons, it will have a charge of +4.

3. Is carbon-12 ion a cation or an anion?

Carbon-12 ion can be either a cation or an anion, depending on the number of electrons it has gained or lost. If it loses electrons, it becomes a cation with a positive charge, and if it gains electrons, it becomes an anion with a negative charge.

4. What is the significance of carbon-12 ion in chemistry?

Carbon-12 ion is important in chemistry because it is a stable isotope of carbon that is commonly used in scientific research and industrial processes. It is also the basis for the atomic mass unit used to measure the mass of atoms and molecules.

5. How does the ionic formula for carbon-12 ion differ from its neutral atom?

The ionic formula for carbon-12 ion differs from its neutral atom by showing the number of electrons it has gained or lost to become an ion. The neutral atom of carbon-12 has 6 protons and 6 electrons, but the ionic formula shows that the ion can have either 4 more or 4 less electrons.

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