The three types of radiation learned in this course.
What is alpha, beta and gamma?
100
226 Ra 88
-> 222 Rn 86 + ?
What is alpha particle?
100
Subatomic particles found in the nucleus of an atom.
What are proton and neutrons?
100
Atoms of with the same number of protons, but different number of neutrons are called __.
What are isotopes?
100
The half-life of Strontium-90 is 29 years. If you have 5 grams of Strontium-90 today, after 29 years, you would have ? grams of this element.
What is 2.5 grams?
200
An alpha particle is like the nucleus of this atom.
What is helium?
200
I-131 -> Xe-131 + ?
What is beta particle?
200
A subatomic particle found outside the nucleus of an atom.
What is an electron?
200
Term used to describe the splitting of a nucleus into two or more nuclei.
What is fission?
200
U-238 has a half-life of 4.5 billions. If you have 10 grams of U-238, after ? years, you would have 2.5 grams.
What is 9 billion years?
300
A high energy electron can also be called this.
What is beta particle.
300
Bi-214 decays to Tl-210 + ?
What is alpha particle?
300
Subatomic particle that has no charge.
What is a neutron?
300
Term used to describe two or more nuclei joining together.
What is fusion?
300
C-14 is the parent isotope and C-12 is its daugher isotope. If there is only 25% of C-14, there must be ? % of C-12
What is 75% of C-12?
400
Type of radiation that can be stopped with just a piece of paper.
What is alpha radiation?
400
Type of radiation resulting from a redistribution of energy within the nucleus.
What is gamma radiation?
400
If the mass number is 14 and the atomic number is 6, the number of neutrons must be __.
What is 8?
400
The name of the nuclear reactor in Canada.
What is the CANDU reactor?
400
K-40 is the parent isotope and Ar-40 is its daugher isotope. Its half-life is 1.3 billion years. If you initially have 10 grams of K-40, after _ years only 1.25 grams of K-40 remain.
What is 3.9 billion?
500
Has the shortest wavelength among the three types of radiation studied in this course.
What is gamma rays?
500
20
? -> Ne + beta particle
10
What is Fluorine -20?
500
In a neutral atom, if the atomic number is 14, the number of electrons must be _.
What is 14?
500
The Sun's energy comes from this type of nuclear reaction.
What is nuclear fusion?
500
The half-life of a particular radioactive isotope is 6 hours. ? percentage of the daughter isotope would be present after 1 day.