J. J. Thomson's experiment disproved the theory that an atom

is divisible.

is indivisible.

contains protons.

contains electrons. J. J. Thomson's experiment disproved the theory that an atom

is divisible.

is indivisible.

contains protons.

contains electrons.

J. J. Thomson’s experiment disproved the theory that an atom is indivisible.

Because his experiments proved that the atom contains smaller negative particles distributed in a large positive mass, concluding that the atom is not a solid uniform sphere.