Rutherford concluded that the positive charge is not spread out but concentrated at the center in an extremely small, dense region called the nucleus, which also contains nearly all the mass of the atom.
What conclusion did Rutherford draw about the position and characteristics of the atom’s positively charged part based on the few alpha particles that bounced back or were deflected at large angles in the gold foil experiment?
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Rutherford concluded that the positive charge and nearly all the mass of the atom are concentrated in an extremely small, dense region located at the center, known as the nucleus. Because only a tiny fraction of positively charged alpha particles rebounded or suffered large deflections, this central nucleus must be very small compared to the total volume and intensely positively charged.
For more NCERT Solutions of Class 9 Science Exploration Chapter 8 Journey Inside the Atom Question Answer (2026-27)
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