Question

6. Most halogens form compounds (Hint: what is their charge?)*

Answer 1

Their charge is —1

Step-by-step explanation:

Halogens form ionic compounds by receiving 1 electron from a metallic atom to obtain their octet configuration. This is clearly seen when sodium(Na) react with chlorine(Cl) to form sodium chloride (NaCl) as shown below:

Na —> Na+ + e-

Cl + e- —> Cl-

Combining both equation together, we have:

Na + Cl + e- —> Na+ + Cl- + e-

Eliminate the e-

Na + Cl —> Na+Cl-

From the ionic equation we can see that the charge of the Halogen (Cl) is —1