Electrons are modeled using a "cloud" around the nucleus because they

A) can not be precisely located.

B) travel at the speed of light.

C) exist in many places at once.

D) move in an orbit about the nucleus.

Electrons are modeled using a "cloud" around the nucleus because they can not be precisely located (option A)

Explanation:

Electrons are negatively charged and are the lightest subatomic particles that atoms have. The electrons appear orbiting around the nucleus of the atom.

The electrons cannot be observed directly and because of this, their exact path and location cannot be known. So you can only identify the regions of space where the electrons are most likely to meet.

Atomic orbitals or electron clouds are the place where there is a greater probability of finding at least one electron.

Electrons are modeled using a "cloud" around the nucleus because they can not be precisely located (option A)

Electrons are modeled using a "cloud" around the nucleus because they

A) can not be precisely located.

B) travel at the speed of light.

C) exist in many places at once.

D) move in an orbit about the nucleus.