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Nuclear Reactions
Half-Life
Radiation Types
Fission/Fusion
100
subatomic particle(s) located in the nucleus
What are protons and neutrons
100

What are 3 types of nuclear radiation?

What is an alpha, beta, and a gamma?


100
What is half-life
Time required for half the amount of a radioactive element to decay
100
Type of radiation that is equivalent to an electron
What is a beta particle
100

What type of reaction has two smaller nuclei combining to form a larger nucleus?

What is fusion?

200
Part of the atom involved in a nuclear reaction.
What is the nucleus
200

Which type of radiation is just energy and NOT a particle? 

What is a gamma ray? 

200

If a radioactive sample goes through 3 half-lives, what fraction of the sample will remain? 

What is 1/8 ? 

200
Strongest type of radiation
What is gamma radiation
200

Which nuclear reaction involves the splitting of a heavy nucleus into two or more lighter nuclei.

What is fission?

300
spontaneously emitted particles or energy
What is radiation
300

Balance the following reaction: _____ --> 3216 S + 0 -1 B

3215 P

300

Thorium-234 has a half-life of 24 days, started with 100 g how much is left after 48 days?

What is 25 grams

300
Least penetrating form of radiation
What is an alpha particle
300

Which occurs in the sun

What is fusion

400
In the isotope Uranium-235, what does the number 235 represent?
What is the mass number
400

Balance the following reaction: 252 98 Cf -->  beta particle + ________ .

What is 252 99 Es

400

Arsenic-81 has a very short half-life of 33 seconds. How long will it take a 100g sample of As-81 to decay to 6.25g? 

What is 132 seconds? 

OR 2 minutes and 12 seconds. 

400
Which form of radiation is equivalent to a helium nucleus?
What is an alpha particle
400

What are the downsides of using fission as an energy source?

nuclear waste; danger of out-of-control chain reaction

500

Explain what causes a nuclei to be unstable. What will the nucleus do to become stable in both cases?

Too many neutrons/protons. 

It releases radiation (particles /energy)

500

Balance the following reaction: 24294 Pu --> alpha particle + _____

238 92 U

500

Carbon-14 has a half-life of 5,730 years. If a sample contains 70 mg originally, how much is left after 17,190 years?

What is 8.75 grams

500
Type of radiation with no mass and no charge
What is gamma radiation
500
Productive uses for nuclear chemistry (give at least 2)
What are medicine, energy, food irradiation