-1
The electron configuration of chlorine is 1s2 2s2 2p6 3s2 3p5.
positively
In sodium chloride, chlorine gains an electron. Sodium donates one electron to chlorine to achieve a stable electron configuration. This forms a chloride ion with a negative charge.
Chlorine's charge would be negative because it gained an electron, which results in it having an extra negative charge.
Magnesium
-1
The electron configuration of chlorine is 1s2 2s2 2p6 3s2 3p5.
positively
In sodium chloride, chlorine gains an electron. Sodium donates one electron to chlorine to achieve a stable electron configuration. This forms a chloride ion with a negative charge.
Chlorine typically gains one electron to form a stable chloride ion. This process involves the attraction of one electron.
Chlorine's charge would be negative because it gained an electron, which results in it having an extra negative charge.
Chlorine's charge after accepting an electron is -1, as it gains one negative charge when it accepts an electron to achieve a stable electron configuration.
A charged chlorine atom, or a chlorine ion, would have gained or lost an electron. If it gained an electron, it would have a charge of -1. If it lost an electron, it would have a charge of +1.
A stable electron configuration for a chlorine ion can be achieved by gaining one electron. This would give the chlorine ion a full outer shell of electrons. The symbol for a stable chlorine ion with an extra electron would be Cl-.
The electron configuration for chlorine is 1s^2 2s^2 2p^6 3s^2 3p^5. This means that chlorine has 17 electrons distributed across its electron orbitals.
Electron affinity of chlorine is far grater than oxygen. For oxygen, its value is 141 KJ/mole whereas for Chlorine, it is 349 KJ/mole. Thus, adding an electron is more favourable in case of a gaseous chlorine atom