Electropositivity decreases as we go down the group.
As we go down the group the atomic radii increases. As the atomic radii increases the ease with which the electron can be removed increases.
Thus the electropositive Character increases as we go down the group.
does reactivity of elements decrease as we go down a group ?
Assertion: The metallic character increases as we go down the group.
Reason: Increase in size decreases the ionisation energy.