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Vocabulary
Nuclear Reactions
Half-Life
Miscellaneous
Miscellaneous 2 electric Boogaloo
100
Alpha particles, beta particles and/or gamma rays are given off when this type of reaction occurs.
What is Radioactive Decay
100
When Radium-226 undergoes an alpha decay
What is Radon-222
100
This amount of a substance remains after 2 half lives:
What is 1/4
100

A Uranium atom is hit by a powerful neutron. The uranium atom decays and produces 3 more powerful neutrons that hit other uranium atoms. This cycle is called what?

Chain reaction

100
This the name of certian elements with the same number of protons but different number of neutrons
What are isotopes
200
This term refers to both the protons and neutrons inside the dense nucleus.
What is a nuclide or nucleon
200
When Lead-210 goes through a beta decay
What is Bismuth-210
200
This amount of a substance decays after 3 half-lives
What is 7/8
200

AMU stands for what

Atomic Mass Unit

200
(True or false) All nuclear reactions change the identity of an element
What is false (gamma rays do not)
300
This type of nuclear radiation is the most penetrating
What is a gamma ray
300
When Thorium 230 goes through an alpha decay
What is Radium-226
300
I-131 is used to treat thyroid cancer. If you ingest a 20 mg sample of I-131, this amount of days will it take until there is only 2.5 mg of I-131 left in your body? (half-life of I-131 = 8 days)
What is 24
300

What is the half life of Carbon - 14

5730 years 

300

Three objects can stop gamma rays. Name one.

What are lead and concrete (and water)

400
This type of decay particle is a helium nucleus
What is an alpha particle
400
When Uranium-238 goes through 2 alpha decays
What is Radium-230
400
You have a sample that is now contains 40 g of Actinium-227. This many grams of Actinium-227 must have been in the sample 44 years ago (Half-life of Actinium is 22 years).
What is 160
400

Why couldn't  use carbon dating to find how old a dinosaur bone is?

The half life of Carbon-14 is to short and the time period that elapsed would be to long and most if not all of the C-14 would be gone. 

400
This is the reason that certian unstable radioisotopes give of alpha, beta and gamma rays
What is to become stable
500

What is the term that means “the time it takes for half of the radioactive atoms in a sample to decay.”

What is a half life

500
When Protactinium-91 goes through a beta decay and then an alpha decay
What is Thorium-89
500
The half-life of radium-226 is 1599 years, this amount is left after 4797 years if you have a 250 grams sample right now?
What is 2000 g
500

If I want to take a guess if a nuclide is stable what would the proton to neutron ratio be for 

- Elements below 20? 

- Elements above 20? 

1 proton :1 Neutron for below

1 Proton:1.58 Neutrons for above

500
This is the term referring to a nuclear reaction involving two small nuclei that "fuse" into one bigger nuclei. (It fuels stars including our sun)
What is fusion