Radioactivity Review
Authored by Lisa Thompson
Science
9th Grade
NGSS covered
Used 3+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What makes something radioactive?
elements with an atomic number above 81
an unstable nucleus
contaminated sewage
It decays over time
Tags
NGSS.HS-PS1-8
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the half-life of iodine-131?
32 days
8 days
16 days
24 days
Tags
NGSS.HS-PS1-8
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An unstable nuclei will break up in a process called radioactive _______________.
decay
decomposition
emission
reduction
Tags
NGSS.HS-PS1-8
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An unstable nuclei will decay ______________.
forever
until it becomes a stable isotope
until there are no neutrons left
Tags
NGSS.HS-PS1-8
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following best describes the process of nuclear fission?
Splitting an atom's nucleus apart
Separating an atom's electrons from its nucleus
Fusing two atomic nuclei together
Splitting an atom's electrons in half
Tags
NGSS.HS-PS1-8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The time needed for half of a radioactive sample to decay is called its __________.
decay period
period
transmutation time
half-life
Tags
NGSS.HS-PS1-8
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which particles make up an alpha particle?
two protons and two electrons
two electrons and two neutrons
one proton and one neutron
two protons and two neutrons
Tags
NGSS.HS-PS1-8
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