Half life, fusion, fission

What is one benefit of using a fission reaction for power?

• Large amounts of energy is produced per amount of starting material

• Radioactive waste must be stored for long periods of time

• Gamma radiation is a product

• Nuclear fuel is stable

In which process does a heavy nucleus split into two lighter nuclei?

• FIssion

• Fusion

• Neutralization

• Electrolysis

What occurs in both fusion and fission reactions?

• Small amounts of energy are converted into large amounts of matter.

• Small amounts of matter are converted into large amounts of energy.

• Heavy nuclei are split into lighter nuclei.

• Light nuclei are combined into heavier nuclei.

Which of these processes describes a nuclear fusion reaction?

• A nucleus absorbs energy to produce lighter nuclei.

• A nucleus splits to produce energy and lighter nuclei

• Two nuclei bind together to produce energy and heavier nuclei.

• Two nuclei bind together to produce energy and a lighter nuclei.

Identify the missing substance in each of the following nuclear reactions.

¹³⁷₅₅Cs--> ______________ + ⁰₋₁e

• ¹³⁷₅₆Ba

• ¹³⁷₅₇La

• ¹³⁷₅₅Cs

Which occurs in both nuclear fission and nuclear fusion reactions?

• A large nucleus forms smaller nuclei

• Mass is converted to energy

• Energy is converted to mass

• Small nuclei form a larger nucleus

Which isotope is used to determine the age of organic materials

• Cobalt - 60

• Carbon - 14

• Iodine -131

• Uranium - 238

Which radioactive isotope can be used in diagnosing and treating disorders of the thyroid

• Carbon - 14

• Cobalt - 60

• Uranium - 238

• Iodine - 131

Which radioactive isotope is used to date inorganic materials and determine the age of geologic formations

• Cobalt - 60

• Iodine - 131

• Carbon - 14

• Uranium - 238

Determine the fraction of the original sample of Iodine-131 used to treat thyroid disorders that remains unchanged after 24.063 days

• 1/2

• 1/4

• 1/8

• 1/16