Question

write about the reactivity of an element based on electropositivity or electronegativity​

Answer 1

Explanation:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Electronegativity; Ability of an atom to attract a shared pair of electrons in its combined state. Non-metals are more Electronegative. Electropositivity: Ability of an atom to withdraw a shared pair of electrons in its combined state. Metals are more Electropositive.