i hear they have -1 charges...but im still trying to figure out why
The charge that is usually formed by the elements in group 7A is 1-
Halogens
The Halogen Family is the most reactive group of nonmetals.
The most active group of nonmetals are those in Group 17, and these are the halogens. The list is headed by fluorine, which is the most reactive element of the group and of the Periodic Table as a whole.
metals and nonmetals
The charge that is usually formed by the elements in group 7A is 1-
Halogens
The Halogen Family is the most reactive group of nonmetals.
Ions are formed when atoms have charges. Cations are species with positive charge. Anions are species with negative charge.
The nonmetals.
Metals: alkaline metals Nonmetals: halogens
Group 6
Group 6
The most active group of nonmetals are those in Group 17, and these are the halogens. The list is headed by fluorine, which is the most reactive element of the group and of the Periodic Table as a whole.
69
group 18
The most common charge (or valency) is -2. But there are compounds formed by elements of group VIA with valency from -2 to +6