Half-Life Practice

Half-Life Practice

8th - 9th Grade

15 Qs

quiz-placeholder

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Half-Life Practice

Half-Life Practice

Assessment

Quiz

Chemistry, Physics

8th - 9th Grade

Practice Problem

Easy

NGSS
HS-PS1-8

Standards-aligned

Created by

Ka'sha Faulk

Used 1+ times

FREE Resource

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

Media Image

What is the half-life of iodine-131?

32 days
8 days
16 days
24 days

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

Media Image

What is the Half Life of this isotope?

3 days

5 days

8 days

10 days

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

When nuclei decay, massive amounts of __________ is released.

energy
jello
protons
neutrons

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

3.0g
0.25mg
0.3g
0.25g

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.

1.25mg
1.25g
10g
10mg

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

3 mins • 2 pts

If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?

1 half-life
2 half-lives
3 half-lives
4 half-lives

Tags

NGSS.HS-PS1-8

7.

FILL IN THE BLANK QUESTION

3 mins • 2 pts

Media Image

The mass number of Neptunium (Np) is _____.

Tags

NGSS.HS-PS1-8

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