Nuclear reaction review

​Nuclear Reactions Review

Multiple Choice

Cobalt-60 has a half life of 5 years, if a hospitals orders a supply of 30g, how much will be left after 15 years

• 1.25g

• 7g

• 3.75g

• 3.25g

Multiple Choice

Carbon-60 has a half life of 10 days, a power plant ordered 280 grams of carbon-60. How much will be left after 40 days?

• 16.5g

• 17.5g

• 4480g

• 70g

Multiple Choice

Iron-140 has a half life of 93 days, a doctor orders 372g of iron. How much iron will be left after 744 days?

• 1.5g

• 10.5g

• 15.5g

• 45.25g

Fusion, Fission & Radioactivity

Multiple Choice

The reaction that takes place in the sun?

• Gamma

• Fusion

• Beta

• Fission

Multiple Choice

Which radioactive decay has the smallest particle

• Beta

• Alpha

• Fusion

• Gamma

Stars

Multiple Choice

What happens when hydrogen fusion stops

• Helium fusion begins

• Nothing

• A black dwarf occurs

• A star splits

Multiple Choice

Describe a black dwarf

• Last stage of a low mass star

• A black dwarf is a big star

• A small star

• A star with bigger than the sun