A student has been learning about atoms. He wrote a small paragraph describing one.


​ How an Atom Looks

​An atom looks similar to a racetrack. There are small particles that move like cars on a racetrack. These particles move in a circle around the center of the track and do not easily move away from the center.

​The student describes particles on the edge of the atom. Which statement supports the student’s claim that the particles on the edge of the atom do not move away from the center?
A
The particles are connected to the center by an object similar to a rope.
B
The particles are attracted to the center because they have a charge opposite to the center’s charge.
C
The particles are pushed toward the center by the nuclear charges of other atoms.
D
The particles are held in place because atoms are a solid structure.

1 answer

The statement that best supports the student's claim that the particles on the edge of the atom do not move away from the center is:

B The particles are attracted to the center because they have a charge opposite to the center’s charge.

This statement explains the attraction between the particles (electrons) and the central part of the atom (nucleus), indicating why the particles stay close to the center and do not easily move away.