Respuesta :
Hm, this could be more than one option, but gaining electrons makes a negative charge, so
If atoms of a halogen nonmetal (Group 17) gains one electron, the atoms the have "a negative one charge".
Answer:
Atoms of a halogen nonmetal gain one electron, the atom has a -1 charge.
Explanation:
The halogen non-metals of Group 17 have 7 valence electrons in their valence shell.
For an element to complete its octet and reach the stable configuration, 8 electrons are required. On gaining an electron the must be an impartment of a negative charge onto the element.
For group 17 elements to complete the octet they need to withdraw one atom. So the charge must be 1.
Since they are accepting the electron, they impart a negative charge.
So, group 17 halogen metals on gaining 1 electron have a -1 charge.
For more information, refer the link:
https://brainly.com/question/11156152?referrer=searchResults