In a salt what charge does the halogen element have when it gains an electron?

In a salt halogen element have negative charge if it gain an electron.

Explanation:

Fluorine,chlorine, bromine and iodine belongs to the family of halogen elements.These elements have high tendency to acquire electron due their high electronegativity.

      When a halogen element forms a salt for example potassium chloride(KCl), the Cl or chlorine is a halogen element which get negative charge when it gains or acquires an electron.

i think it's c. i'm not sure but i think so.

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.