Physics - Radioactivity

Which of the following statements are characteristic of an alpha particle?

• It is negatively charged.
• It has no mass or charge.
• It's symbol is. β
• It has poor penetrating ability.

Answer explanation

Jupiter is a gas giant made primarily of hydrogen and helium. Unlike terrestrial planets that have solid surfaces, gas giants like Jupiter don't have a well-defined solid surface, allowing them to accumulate more mass in a gaseous form. This composition has allowed Jupiter to grow significantly larger than planets with solid surfaces.

Which of the following statements is a characteristic of gamma rays?

• It is positively charged.
• It has mass.
• It's symbol is γ
• It has poor penetrating ability.

Which of the following is not true about beta decay?

• It results in an atom with a smaller atomic number.
• It results in the emission of an electron.
• It results in an atom with one less neutron
• It results in an atom with one more proton.

Which is not one of the three types of radioactive decay.

• Alpha
• Delta
• Beta
• Gamma

Radioactivity is spontaneous and random.

• It's True
• It's False

Which type of radioactive decay doesn't change the atomic number?

• Alpha
• Beta
• Gamma
• All forms of radioactive decay affect the atomic number.

Whether or not a nuclear fission reaction becomes self-sustaining depends on the release of:

• protons
• neutrons
• electrons
• energy

Particles that are helium nuclei are called:

• alpha particles
• beta particles
• gamma particles
• There are no particles that are helium nuclei.

What is it called when two atomic nuclei are combined?

• nuclear fission
• nuclear fusion
• nuclear decay
• nuclear decay

Quick electron emissions are called:

• alpha decay
• beta decay
• gamma decay
• radioactive half-life