Question

All elements in the Halogen family react violently because

1. Halogens have 1 valence electron that they give away readily to other elements in reactions
2. Halogens have 7 valence electrons which gives up massive energy when they give all seven to other elements
3. Halogens need only 1 electron which they will violently take from other elements
4. Halogens only react violently with water