Question

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Which was a testable idea that Ernest Rutherford developed in his experiments?

A. The positive charge in an atom is concentrated in one location.

B. Atoms are not divisible into smaller particles.

C. It is impossible to define the mass of an atom.

D. The atom contains no particles that have a neutral charge.

Answer 1

I know he wanted to prove that atoms were solid. Which eventually led to the discovery of the electron.

Answer 2

is it A?

Answer 3

Yes.

Answer 4

thanks :)

Answer 5

the positive charge is concentrated in the center of the atom called nucleus