Question

who discovered nucleus​

Answer 1

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$<font color="purple"><i>$The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.
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Answer 2

Answer:

Nucleus was discovered by Lord Ernest Rutherford during the gold foil scattering experiment.

The above picture shows the gold foil scattering experiment..