Podcast
Questions and Answers
What is the change in atomic number during α-decay?
What is the change in atomic number during α-decay?
- It remains the same
- It increases by 4
- It decreases by 1
- It decreases by 2 (correct)
Which statement is true regarding β-decay?
Which statement is true regarding β-decay?
- Atomic number increases by 1 (correct)
- Mass number decreases by 1
- Mass number remains unchanged and atomic number decreases
- A proton is converted into a neutron
What is a characteristic of γ-decay?
What is a characteristic of γ-decay?
- Mass number decreases by 1
- It often accompanies α- or β-decay (correct)
- It results in an atomic number increase
- It only occurs independently
Which of the following equations represents α-decay?
Which of the following equations represents α-decay?
In β-decay, what particle is emitted during the conversion of a neutron?
In β-decay, what particle is emitted during the conversion of a neutron?
Which radioactive decay process keeps the mass number unchanged?
Which radioactive decay process keeps the mass number unchanged?
What happens to the atomic number in γ-decay?
What happens to the atomic number in γ-decay?
Which of the following decay types specifically involves the conversion of a neutron?
Which of the following decay types specifically involves the conversion of a neutron?
What is the result of α-decay regarding the mass number?
What is the result of α-decay regarding the mass number?
Which of the following statements is false concerning radioactive decay?
Which of the following statements is false concerning radioactive decay?
Study Notes
Atomic Theory Overview
- The mass number decreases by 4 and the atomic number decreases by 2 in alpha decay.
- An example of alpha decay is when radium-223 decays into radon-219 and an alpha particle (helium-4).
Beta Decay
- In beta decay, the mass number remains the same, but the atomic number increases by 1.
- A neutron is converted into a proton and an electron during beta decay.
- An example of beta decay is when carbon-14 decays into nitrogen-14 and an electron.
Gamma Decay
- Gamma decay often occurs with alpha or beta decay, or during electron capture.
- The atomic number decreases by 1 but the mass number remains the same.
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Description
Explore the fundamentals of atomic theory, focusing on the different types of radioactive decay: alpha, beta, and gamma. This quiz will test your understanding of how these decays affect mass and atomic numbers, along with real-world examples.
