Answer:
F2, Br2, I2
Step-by-step explanation:
The halogen diatomic molecules have a general formula X2. Based on periodic properties, the halogens all have similar chemical behavior. This implies that, F2, Cl2, Br2 and I2 all have similar chemical properties.
All these other X2 halogen molecules are likely to react with St, just as Cl2 does.