Homework #23: Half Life and Radioactive Nuclides
Authored by Rana Chakrabarty
Science
9th Grade
NGSS covered
Used 5+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a potential risk associated with radioactive isotopes?
biological exposure
curing of diseases
industrial measurements
tracing chemical processes
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The use of uranium-238 to determine the age of a geological formation is a beneficial use o
radioactive isotopes
nuclear fissions
radioactive isomers
nuclear fusion
Tags
NGSS.HS-PS1-8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which radioisotope is used in dating geological formations? Use the study guide or image if you need help
I-131
U-238
Ca-37
Fr-220
Tags
NGSS.HS-PS1-8
4.
MATCH QUESTION
1 min • 1 pt
Match each radioisotope with it's common application
thyroid disorders
U-238
geological formations
C-14
organic remains / fossils
Co-60
cancer treatment
I-131
5.
MATCH QUESTION
1 min • 1 pt
Match each radioisotope with the particle it emits
beta particle
Iron-53
positron
C-14
alpha particle
Francium-220
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An unstable nucleus spontaneously releases a positron. This is an example of
thermal conductivity
chemical decomposition
nuclear fusion
radioactive decay
Tags
NGSS.HS-PS1-8
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which two best describes unstable nuclei? (Choose two)
They artificially absorb radioactive particles
They artificially emit radioactive particles
They spontaneously absorb radioactive particles
They spontaneously emit radioactive particles
They are radioactive
Tags
NGSS.HS-PS1-8
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