Key Words
Alpha, Beta, Gamma
Balancing Nuclear Equations
Fission v Fusion
Half-Life
100
The Parent Isotope Is...
What is the Unstable Element?
100
Beta decay changes the atomic number by
What is increasing the atomic number by 1?
100
Balance the Following Nuclear equation:
208O --> 209F + ____
What is: 0-1e ?
100
Nuclear fission is...
What is the process that splits a heavy atomic nucleus into lighter nuclei?
100
Half-life is...
What is the time required for half of a radioactive sample to decay?
200
The Daughter Isotope is...
What is the stable elements after a reaction has taken place?
200
Alpha Decay Emission is this molecule...
What is a helium molecule: 42He2+
200
Balance the following Nuclear Equation:
9743Tc --> 9742Mo + ______
What is: 0+1e ?
200
Nuclear Fusion is...
What is when two light atomic nuclei combine to form a heavier nucleus.
200
The only time the parent and daughter isotopes are equal:
What is after the first half-life?
300
A radioactive element is...
What is an element with an unstable nucleus that emits radiation to become more stable?
300
Gamma Radiation is...
What is pure energy?
300
Balance the following Nuclear Equaiton:
147N + _____ --> 178O + 11H
What is 42He?
300
Nuclear fusion occurs (location)...
What is in the sun?
300
The half-life of a radioactive isotope is 5 days. The fraction of the original sample that remains after 15 days is:
What is 1/8?
400
Radioactivity is...
What is the process by which unstable atoms spontaneously emit radiation as they decay?
400
The cookie from my pocket is least safe to ingest with ___________ decay.
What is Beta Decay?
400
Balance the following nuclear equation:
25298Cf --> 14256Ba +____+ 4 10n
What is 10642Mo?
400
This particle is often used to initiate fission reactions:
What is a Neutron?
400
The half-life of Iodine-131 is approximately 8 days. 75% of the sample has decayed. _______ days passed.
What is 16 days?
500
Ionizing radiation is...
What is the ability of radiation to give or take electrons? Types of Ionizing radiation: Ultraviolent, X rays, and gamma
500
Alpha Decay is used in smoke detectors by...
What is americium-241, which ionizes the air and triggers the alarm when smoke particles enter the detector?
500
Balance this nuclear equation:
23592U --> ____ + 7 42He + 4 0-1e
What is 20782Pb?
500
This element is used as fuel in nuclear fission reactors:
What is Uranium-235?
500
The half-life of Uranium-238 is:
What is 4500 million years?