Radioactivity and Half-Life CFU
Authored by Candice Gray
Chemistry
10th Grade
NGSS covered
Used 108+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of radioactive decay involves the release of an alpha particle from the nucleus?
Beta decay
Gamma decay
Alpha decay
Positron emission
Tags
DOK Level 1: Recall
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a type of radioactive decay?
Alpha decay
Beta decay
Gamma decay
Sigma decay
Tags
DOK Level 1: Recall
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the half-life of a radioactive isotope is 10 years, how much of a 100 gram sample remains undecayed after 20 years?
25 grams
50 grams
75 grams
100 grams
Tags
DOK Level 2: Skill/Concept
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Beta particle
Gamma ray
Alpha particle
Neutron
Tags
DOK Level 2: Skill/Concept
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculate the remaining quantity of a 200 gram sample of a radioactive isotope after three half-lives, if the half-life of the isotope is 5 years.
100 grams
50 grams
25 grams
12.5 grams
Tags
DOK Level 2: Skill/Concept
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In beta decay, a neutron in the nucleus of an atom changes into a proton and emits an electron. What is this electron called?
Beta particle
Alpha particle
Gamma ray
Positron
Tags
DOK Level 1: Recall
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alpha decay
Beta decay
Gamma decay
Positron emission
Tags
DOK Level 2: Skill/Concept
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