JonellMcdonalds JonellMcdonalds

14-10-2015
Physics

contestada

J. J. Thomson s experiments provided evidence that an atom
A. is the smallest particle of matter.
B. contains negatively charged particles.
C. has a negative charge.
D. has a positive charge

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ExtraordinaryAlien ExtraordinaryAlien

14-10-2015

J.J. Thomson's experiments provided evidence that an atom B.contains negatively charged particles.

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