Spontaneous Decay of Unstable Nuclei (HSC SSCE Physics): Quizzes

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Spontaneous Decay of Unstable Nuclei
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What is the nature of spontaneous radioactive decay?

Random and uncontrollable process

What is true about the strong nuclear force?

Much stronger than electrostatic force

How do neutrons help stabilize a nucleus?

Add strong force without adding repulsion

Which equation relates mass number AA, atomic number ZZ, and neutron number NN?

N=AZN = A - Z

What are isotopes?

Same protons, different neutrons

In alpha decay, how does the mass number AA change?

Decreases by 4

In beta-minus decay, what happens to the atomic number ZZ?

Increases by 1

What happens to atomic number ZZ during beta-plus decay?

Decreases by 1

What is true about gamma emission?

No change in AA or ZZ

What must be conserved in all nuclear decay processes?

Total nucleons and net charge

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