er a GaAs semiconductor with a lattice constant a=5.65 Å The bond between Ga and As atoms is metallic. O ionic. O Van der Waals. covalent. O The distance between the centers of the nearest Ga and As atoms is 3.995 Å. O 2.446 Å. 2.512 Å. О 3.163 Å. O The distance between the centers of the nearest As atoms is