What does the wave mechanical model use to represent the locations of electrons?
circular orbits

electron clouds

waves and particles

In the the wave mechanical model from the quantum mechanics, the behavior of an electron in an atom is described by an orbital, which is a probability distribution rather than an orbit (represented by a probabilistic cloud).

In this context, electrons are thought of as waves of probabilistic matter using De Broglie's wavelength and Schrödinger's uncertainty principle.

im not to sure what it is

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.