Which element gains two electrons to fill its outermost energy level?
(1 point)
Responses
selenium (Se)
selenium (Se)
magnesium (Mg)
magnesium (Mg)
fluorine (F)
fluorine (F)
lithium (Li)
(1 point)
Responses
selenium (Se)
selenium (Se)
magnesium (Mg)
magnesium (Mg)
fluorine (F)
fluorine (F)
lithium (Li)