Show:
Nuclear Decay Equations
That's Sooo Nuclear
Fission for an Answer , or Fusion (hold the Con)
You Only Half-life Once
FINAL JEOPARDY
100

Write the alpha decay of Uranium-238

Thorium-234

100

The three types of Nuclear Radiation are....

Alpha Decay, Beta Decay, and Gamma Decay

100

Nuclear reactions consisting of two lighter nuclei combining to form one heavier nucleus is known as nuclear _______.

Fusion

100

A sample of carbon-14 has a half-life of 5730 years. If you start with 100 grams of carbon-14, how much will remain after 5730 years?

50 grams

200

Write the gamma decay of Carbon-13

Carbon-13

200

List and describe the two opposing forces that are working in the nucleus of the atom.

Electrostatic repulsion -- protons' positive charges are repelling each other, causing the protons to separate within the nucleus

Strong Nuclear Force -- neutrons exhibit a force that holds the nucleus together.

200

Nuclear reactions where one heavy nucleus splits to form two lighter and more stable nuclei is known as Nuclear ___________.

Fission

200

A substance has a half-life of 10 years. How much of a 160-gram sample will remain after 30 years?

20 grams

300

Write the electron capture of Beryllium-7.

Be-7 + electron --> lithium-7

300

What is the name of the man who discovered radioactivity?

Henri Becquerel

300

The power of the sun is generally generated by fusing isotopes of ____________ to form __________?

Bonus: Draw the nuclear equation for this reaction, including the emitted neutron

Hydrogen ;  Helium


Hydrogen-2 + Hydrogen-3 --> Helium-4 + neutron

300

A sample of iodine-131 has a half-life of 8 days. If 25 grams of iodine-131 decays to 3.125 grams, how long has the sample been decaying?

24 days

400

What element is formed when Polonium (Po) undergoes beta decay?

Astatine (At)

400
What radioactive decay particle is not strong enough to penetrate through a sheet of paper.

Alpha particle (Helium nucleus)

400

The atomic bombs dropped on Hiroshima and Nagasaki were examples of what type of nuclear reaction?

Bonus: The bomb dropped on Nagasaki was based on what radioactive element?

Fission

Bonus: Plutonium

400

It takes 15 years for 500 grams of a radioactive isotope to decay into 62.5 grams. What is the half-life of this isotope?

5 years

500

Mystery element X undergoes alpha decay and forms Americium-243. What isotope is element X?

Berkelium-247.

500

The type of radioactive decay increases the atomic number of an element by 1.

Beta decay

500

The smallest mass of fissionable material that can sustain a nuclear chain reaction is known as _____________  ________. 

Critical Mass

500

After 4 half-lives, 10 grams of a radioactive isotope remains. What was the initial mass of the sample?

160 grams

500
A particular isotope (Isotope Z) is undergoing nuclear fission. To ensure the reaction occurs, a particle with a mass number of one and no effect on the atomic number is bombarded into Isotope Z. The product side shows two different isotopes (Ru-113 and Cs-137) as well as 3 neutrons. 


Identify Isotope Z and write the full nuclear equation.

Es-252 + 1 neutron --> Ru-113 + Cs-137 + 3 neutrons

Isotope Z = Einsteinium-252