Which of the following is the best description of an atom's physical structure?
A) An atom is a solid mass of material.
B) The particles that form an atom are equidistant from each other.
C) Atoms are little bubbles of space with mass concentrated at the centre of the bubble.
D) Atoms are little bubbles of space with mass concentrated on the outside surface of the bubble.

Question

Quizplus · Accepted Answer

An atom is mostly empty space with mass concentrated at the center in the form of a nucleus made up of protons and neutrons, surrounded by a cloud of electrons. This description matches option C: "Atoms are little bubbles of space with mass concentrated at the center of the bubble." Option B is incorrect because while the particles are indeed spaced out, they are not necessarily equidistant. Option A and Option D are inaccurate because atoms are not solid masses and do not have mass concentrated on the outside surface.

Which of the Following Is the Best Description of an Atom's