Understanding Radioactive Decay Concepts

Which of the following is NOT a type of radioactive decay?

• Alpha decay

• Beta decay

• Gamma decay

• Electron capture

• Fusion

In alpha decay, what particle is emitted from the nucleus?

• A neutron

• A proton

• An electron

Which of the following nuclear equations correctly represents alpha decay?

What happens to the atomic number of an element when it undergoes alpha decay?

• Increases by 1

• Decreases by 2

• Remains the same

• Decreases by 4

Which type of radioactive decay does NOT change the mass number of the nucleus?

• Alpha decay

• Beta-plus decay

• Gamma decay

• Electron capture

• A neutron

• A gamma photon

• An alpha particle

Which of the following statements about gamma decay is correct?

• It changes the atomic number of the nucleus.

• It changes the mass number of the nucleus.

• It emits a high-energy photon.

• It emits a neutron.

Which of the following best describes a nuclear equation for radioactive decay?

• It shows the conservation of mass only.

• It shows the transformation of one element into another and the emission of particles or energy.

• It only shows the emission of energy.

• It does not involve any change in the nucleus.