Question

fluorine (f) and bromine (br) are in the same group on the periodic table. how do atoms of these elements compare when they form bonds?
○ both a fluorine atom and a bromine atom lose one electron, and both atoms become stable.
○ a fluorine atom becomes stable by losing one electron, but a bromine atom cannot become stable by losing only one electron.
○ both a fluorine atom and a bromine atom gain one electron, and both atoms become stable.
○ a fluorine atom becomes stable by gaining one electron, but a bromine atom cannot become stable by gaining only one electron.

Explanation:

Fluorine (F) and bromine (Br) belong to Group 17 (halogens) of the periodic table. All halogens have 7 valence electrons, so they gain 1 electron to achieve a stable octet (8 valence electrons). This behavior is consistent across Group 17 elements.

Answer:

Both a fluorine atom and a bromine atom gain one electron, and both atoms become stable.