1. In nuclear fission, what is typically released along with the lighter nuclei when a heavy nucleus splits?
2. What does Rutherford's experiment primarily demonstrate about the structure of an atom?
3. Which type of radiation is characterized by high penetration power and no electric charge?
Radioactive decay — types?
α, β, γ radiations
Atom — smallest matter unit?
Nucleus and electrons
Rutherford experiment — reveal?
Nucleus with positive charge
Atom — smallest matter unit?
Contains nucleus and electrons.
Goldstein’s experiment — key finding?
Nucleus is dense, positively charged.
Proton number (Z) — role?
Defines the element.
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