Structure of the Atom (HSC SSCE Physics): Flashcards

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Chadwick's Discovery of Neutrons
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Nucleons definition

Particles in nucleus: protons & neutrons

Neutron charge

Zero (electrically neutral)

Proton vs neutron mass

Approximately the same (differ by ~0.1%)

Who discovered neutrons (1932)

James Chadwick

Who observed Be radiation (1930)

Walther Bothe

Metal bombarded for neutrons

Beryllium

Particles bombarding beryllium

Alpha particles

Why neutrons hard to detect

No electrical charge

Proton source in Chadwick's exp

Paraffin wax

Laws for neutron mass calculation

Conservation of momentum & energy

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