STEM CHEM TEST CHAPTER 24/25
STEM Chemistry Quiz: Chapters 24/25
Test your knowledge of nuclear chemistry with our in-depth quiz covering essential concepts from Chapters 24 and 25. This quiz is designed for students and enthusiasts looking to deepen their understanding of radioactivity, nuclear reactions, and isotopes.
- 28 engaging multiple-choice questions
- Focus on radioisotopes and their applications
- Perfect for exam preparation or self-assessment
A particle of a +1 charge and the mass of an electron
Alpha particle
Neutron
Positron
Proton
A high energy photon emitted by a radioisotope
Gamma radiation
Alpha radiation
Beta radiation
Radioactivity
An emitted helium nucleus
Beta particle
Alpha particle
Gamma radiation
Proton
What radioisotope would be most useful in dating objects that are THOUSANDS of years old?
Carbon - 14; t(1/2) = 5.73 x 10^3 years
Potassium - 40; t(1/2) = 1.28 x 10^9 years
Radon - 222; t(1/2) = 3.8 days
Thorium - 234; t(1/2) = 25 days
A neutron breaks down to form _________.
Proton
Alpha particle
A proton and an electron
A positron and an electron
A transmutation reaction must always involve a(n) _______.
An increace in the number of protons in the nucleus
A change in the number of protons in the nucleus
An apha particle
A change in the number of electrons in an atom
What type of radiation is most likely to occur when the ration of neutrons to protons is BELOW the band of stability?
Beta decay
Alpha decay
Positron emission
Proton emission
What is the change in ATOMIC NUMBER when an atom emits an alpha particle?
+1
+4
+2
-2
A gamma ray has a charge of ___.
0
+1
-1
+2
A reaction that combine smaller nuclei to create a bigger atom is a ________ reaction.
Fission
Fusion
A reaction that seperatse a nucleus to create two smaller atoms is a ________ reaction.
Fission
Fusion
When/where does nuclear fusion occur?
In the sun
In a lab
In a nuclear reactor
Sheilding material to protect against ____ can be a problem due to the irradation of larger atoms by the negative charge.
Alpha decay
Beta decay
Proton emission
Gamma radiation
What is the purpose of neutron absorbsion in a nuclear reactor?
It slows the reaction
It recycles the fuel
It cools the water
It dosn't do anything
Damage to living cells through radiation usually occurs via the disruption of _____.
DNA
Atomic bonds in cells
The uptake of glucose
The isotope ________ is usually used in PET scanning as a lable attached to glucose.
Iodine - 131
Fluorine - 18
Uranium - 238
Potassium - 40
How long are spent fuel rods radioactive?
10 years
Hundreds of years
ˆž
Tens of thousands of years
The most common element used for fuel in a nuclear reactor is ________.
Uranium
Plutionium
Carbon
Cadmium
Spent fuel rods are stored in _________ which serves as a radiation ________.
Pools of water; sheild
Swimming pools; magnifier
Oil; increaser
Which particles maintain a nuclear chain reaction?
Proton
Neutron
Electron
Positron
Which element(s) is used in control rods?
Cadmium
Boron
Carbon
Iron
Radiation exposure can produce _______________.
Nausea
Weakness
Skin burns
Cancer
All of the above
_________ is used to check a person's exposure to radiation
Film badge
Geiger counter
Scintillation counter
_________ measures radiation using a tube of gas
Geiger counter
Scintillation counter
Film badge
________ is measures radiation using a phospor covered surface
Scintillation counter
Film badge
Geiger counter
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