Radioactivity and Nuclear Reactions

In the nucleus of an atom, which two particles are found?

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

• Alpha particles and beta particles

Tags

NGSS.HS-PS1-8

Which type of radioactive particle has the lowest penetrating power?

• Alpha particles

• Beta particles

• Gamma rays

• Neutrons

The time it takes for half of a radioactive sample to decay is the definition of what?

• Decay constant

• half-life

• Decay rate

• Decay series

Tags

NGSS.HS-PS1-8

When Cu-67 undergoes beta decay, what element is produced?

• Zinc

• Nickel

• Copper

• Silver

Tags

NGSS.HS-PS1-8

The half-life of carbon-14 is 5,730 years. If you start with 100g, how much would remain after 11,460 years?

• 25g

• 50g

• 12.5g

• 6.25g

When Uranium-234 undergoes alpha decay, what element is produced?

• Thorium

• Protactinium

• Neptunium

• Plutonium

Tags

NGSS.HS-PS1-8

When Neptunium-239 undergoes beta decay, which element is produced?

• Uranium

• Plutonium

• Americium

• Curium

Tags

NGSS.HS-PS1-8

The half-life of Radon-222 is 4 days. How much of a 10g sample would remain after 12 days?

• 1.25g

• 2.5g

• 5g

• 10g

If you have 4000 grams of Iodine-131 to start and it has a half-life of 8 days, how much would remain after 32 days?

• 500g

• 1000g

• 2000g

• 250g

Tags

NGSS.HS-PS1-8

What type of nuclear reaction is it when two nuclei combine?

• Alpha decay

• Beta decay

• Fusion

• Fission

Tags

NGSS.HS-PS1-8