Yes you are, if you ask if the Law of Inertia is obeyed. That law predicts a particle will continue in a straight line at constant speed, in the absence of a net force on it. It therefore says you can know exactly where it is at any time t and, as the speed is constant, you know its momentum exactly too. QM says you cannot know both exactly, so you can't exactly define the evolution of its position with time or its speed. As for "wave function" and "wave-particle" are different concepts, yes they are, but the wave function is the mathematical expression that underpins the wave-particle concept. So they are very closely connected. If you graph the wave function for atomic orbitals, you see a series of spherical harmonics. These are resonant standing wave patterns. They represent the allowed stable states of electrons in the atom because these are the only patterns that do not create destructive interference over time and thus vanish. These are wave concepts, which describe the behaviour of so-called "particles".