An elastic wave element (10) equipped with a vibration part (12), electrode pads (13), under-bump metals (UBM) (21) a first end surface (21t) of which is joined to the electrode pads (13), and bumps (20) joined to a second end surface (21s) of the UBMs (21), wherein three or more junction terminals formed by joining an electrode pad (13), a UBM (21), and a bump (20) in this order are arranged on a surface (17s) of the elastic wave element, and when the smallest distance among the distances between one junction terminal and multiple junction terminals arranged around that terminal is defined as the bump-to-bump distance for that one junction terminal, the area of the second end surface (21s) of a first junction terminal which has a bump-to-bump distance that is larger than the smallest bump-to-bump distance among the bump-to-bump distances of the junction terminals and is the largest bump-to-bump distance, and the area of the second end surface (21s) of a second junction terminal which is arranged at the largest bump-to-bump distance from the first junction terminal, are greater than that of the other junction terminals.