-1. This the charge on the chloride ion. It has gained an electron
Chlorine has an oxidation number of +1 in compounds with metals such as sodium chloride (NaCl) or potassium chloride (KCl).
The valence of chlorine is -1.
The chemical formula for sodium is Na and for chlorine is Cl. When combined, sodium and chlorine form the compound sodium chloride, with the chemical formula NaCl.
There is no compound with the formula CL4. The element chlorine typically forms compounds with a -1 oxidation state, such as in NaCl (sodium chloride).
The correct formula of sodium chloride is NaCl. This molecule has two atoms - sodium and chlorine.
The oxidation number is the charge an atom would have if electrons were transferred completely. For example, in NaCl, sodium has an oxidation number of +1 (it loses an electron) and chlorine has an oxidation number of -1 (it gains an electron).
Chlorine is in group 17. It easily accepts an electron from another element to fill its valence shell. As it takes one electron, its oxidation number changes to -1.
The oxidation number of Na in NaCl is +1, while the oxidation number of Cl in NaCl is -1.
Sodium chloride (NaCl) formula unit has one chlorine atom.
2Na + Cl2 -> 2NaCl. The oxidation state of the sodium ion in NaCl is +1 and the oxidation state of Chloride ion is -1. Oxidation states of the elemental reactants is zero (as for all elements)
It depends on the compound its in. (the range for its oxidation number ranges from -1 to +7 [odd numbers in between are its oxidation numbers exp: -1, +1, +3, +5, +7]) For example if its cl- (only a chlorine ion) then its oxidation number is -1 (simmilar to its valency). If its in the compound NaCl, We know that its total oxidation is 0. (all compunds have an oxidation number of zero) Na has an oxidation number +1. Therefore +1 + x = 0 -> through this you can find the oxidation number of chlorine in this compund. (x representing the oxidation number of chlorine). In this case the answer is x=-1. In the compound HClO4 (perchloric acid), the oxidation number of the total compund is equal to 0. Oxygen has an oxidation number of -2, and hydrogen has an oxidation number of +1. Therefore, (+1) + x + (-2*4) = 0 (oxygen in this compund has 4 atoms so -2 multiplied by 4) Thus: +1 + x + (-8) = 0 +1 + x = 8 x= 8 -1 x= +7 So we can see here that the oxidation number of chlorine has become +7. Do the same for any compound that chlorine is involed in. Hope it helps.
Sodium chloride is salt. Its chemical formula is NaCl.