Name: 

Which of the illustrations above represents a fission reaction?

Which of the following is a fusion reaction?

The energy released in a nuclear reaction comes from

Particles or electromagnetic radiation emitted from the nucleus during radioactive decay

Which of the following processes always decreases the number of protons by an even number?

Which of the following lists ranks nuclear radiation from most massive to least massive?

What is the half-life of an isotope if 125 g of a 500 g sample of the isotope remains after 3.0 years?

Which series consists of radioactive nuclides produced by successive radioactive decay until a stable nuclide is reached?

Which of the following has the weakest penetration abilty?

Which of the following has the greatest penetrating ability?

Which of the following is the purpose of a Geiger counter?

Which of the following is a fission reaction?

An unstable nucleus ____.

What particle is emitted in alpha radiation?

What is the change in the atomic number when an atom emits an alpha particle?

What is the change in atomic number when an atom emits a beta particle?

Which symbol is used for an alpha particle?

What symbol is used for beta radiation?

What particle is needed to complete this nuclear reaction?
Rn Po + _____

When radium-226 (atomic number 88) decays by emitting an alpha particle, it becomes ____.

What particle does argon-39 (atomic number 18) emit when it decays to potassium-39 (atomic number 19)?

What particle is needed to complete the following nuclear equation?
Mn ____ + e

What particle is needed to complete the following equation?
N + ____ C + H

To what element does polonium-208 (atomic number 84) decay when it emits an alpha particle?

Which of the following is the parent nuclide?

Which of the following is the daughter nucleus?

The half-life of radon-222 is about four days. What percent of a sample would you expect to find after 12 days?

If the half-life of sodium-24 is 15 hours, how much remains from a 10.0-g sample after 60 hours?

Consider the diagram above. Which letter best represents the penetrating ability of beta particles?

Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon (¹⁴C), a radioactive isotope of carbon.

The method was developed by Willard Libby in the late 1940s and soon became a standard tool for archaeologists. Libby received the Nobel Prize for his work in 1960. The radiocarbon dating method is based on the fact that radiocarbon is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting radiocarbon combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire ¹⁴C by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and from that point onwards the amount of ¹⁴C it contains begins to decrease as the  ¹⁴C undergoes radioactive decay.

Measuring the amount of ¹⁴C in a sample from a dead plant or animal such as a piece of wood or a fragment of bone provides information that can be used to calculate when the animal or plant died. The older a sample is, the less ¹⁴C there is to be detected, and because the half-life of ¹⁴C (the period of time after which half of a given sample will have decayed) is about 5,730 years, the oldest dates that can be reliably measured by radiocarbon dating are around 50,000 years ago, although special preparation methods occasionally permit dating of older samples.

Use the above reading to help answer this question.

Nitrogen-14 is the daughter that is produced during the decay of Carbon-14, what type of particle is also emitted?

Use the above reading to help answer this question.

A mastedon tusk was found near Great Oak High School.  The carbon-14 content was found to be 1/4 of the suspected original amount.  Approximately how old is the tusk?

An archaelogist finds a sample she suspects is 30,000 years old.  Using the above table, what type of radioactive isotope should she use to accurately determine the age of the sample?