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Mathematics 21 Online
OpenStudy (anonymous):

will give medals + fan! 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. I think it's A but I'm not quite sure.

OpenStudy (anonymous):

again, I know it's not a math question but I need help.

OpenStudy (crashonce):

it is A

OpenStudy (crashonce):

B was thomson, C was ancient greece and D is definitely wrong

OpenStudy (anonymous):

thanks :) appreciate it a lot!

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