The atom gains an electron and becomes negativly charged
Only nonmetal elements can usually form monatomic anions, but some metallic elements, such as aluminum and iron, can form polyatomic anions that also include other very strongly electronegative elements, such as oxygen and fluorine.
Generally anions. (e.g. Cl-, F-, O2-, N3-)
salt
Elements that will form anions are on the right side of the periodic table, except for the noble gases in group 18, which don't form ions.
form a 3-D structure
Yes, fluorine does form monatomic anions with formula F-1.
anions are formed
Only nonmetal elements can usually form monatomic anions, but some metallic elements, such as aluminum and iron, can form polyatomic anions that also include other very strongly electronegative elements, such as oxygen and fluorine.
Generally anions. (e.g. Cl-, F-, O2-, N3-)
Oxygen form generally anions.
salt
Elements that will form anions are on the right side of the periodic table, except for the noble gases in group 18, which don't form ions.
cations and anions
Selenium form anions.
form a 3-D structure
generally anions are formed
no