Question

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

group and period
group and period

valence electrons and electronegativity
valence electrons and electronegativity

electronegativity and period
electronegativity and period

valence electrons and group

Answer 1

The characteristics that determine an element’s reactivity are primarily **valence electrons and group**. This is because the number of valence electrons influences how an atom interacts with others to form bonds, and elements in the same group often exhibit similar reactivity patterns due to having the same number of valence electrons.