Question

Which characteristics determine an element’s reactivity?(1 point)
Responses

valence electrons and group
valence electrons and group

valence electrons and electronegativity
valence electrons and electronegativity

electronegativity and period
electronegativity and period

group and period

Answer 1

valence electrons and group

The number of valence electrons (and thus the element’s group on the periodic table) largely determines how readily it will gain, lose, or share electrons and therefore its reactivity.