1s2 2s2 2p6 3s2 3p5
-1
1s2 2s2 2p6 3s2 3p6 is the electron configuration of chlorine
positively
Chlorine's charge would be negative because it gained an electron, which results in it having an extra negative charge.
The electron configuration of chlorine is 1s2 2s2 2p6 3s2 3p5
Magnesium
-1
1s2 2s2 2p6 3s2 3p6 is the electron configuration of chlorine
positively
The chlorine in sodium chloride has GAINED an electron . Represented by the 'half-eq'n', Cl + e^(-) = Cl^(-) Chlorine has been REDUCED (Gained an electron) Conversely sodium has LOST an electron Represented by the 'half-eq'n'. Na = Na^(+) + e^(-) Sodium has been OXIDISED(Lost an electron). The two ions come together by electrostatic attraction to form the ionic compound sodium chloride. Na^(+) + Cl^(-) = NaCl(s). Think of the mnemonic OILRIG. Oxid'n Is Loss (of electrons); Reduction Is Gain (of electrons).
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 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 of chlorine is 1s2 2s2 2p6 3s2 3p5
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.
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