Question

In the electron cloud model, the electron cloud is denser in some locations than in others. What do the denser areas represent?

Answer 1

Answer:

Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Electrons are tiny, negatively charged particles in an atom that move around the positive nucleus at the center. Energy levels are a little like the steps of a staircase. You can stand on one step or another but not in between the steps. The same goes for electrons. They can occupy one energy level or another but not the space between energy levels.

Answer 2

Electron cloud model was the great contribution of 20th centuary
In the electron cloud model, the electron cloud is denser in some locations than in others the denser areas represent that the
regions where the probability of finding an electron is high 
means there is more chance of finding or presence of an electron
so correct option is A
 hope it helps