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Nuclear Chemistry Review

Authored by Philip Srulevitch

Chemistry

9th - 12th Grade

NGSS covered

Used 3+ times

Nuclear Chemistry Review
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In her chemistry class, Hannah learned that a nuclear reaction always involves

the electrons of an atom

the nucleus of an atom

Tags

NGSS.HS-PS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You have two radioactive isotopes. Both isotopes have the same number of atoms, but one has a high decay constant and the other has a low decay constant. Which one would be decaying faster?

The one with the high decay constant would be decaying faster

The one with the low decay constant would be decaying faster

Not enough information given

Tags

NGSS.HS-PS1-8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a 200 gram sample undergoes 2 half lives, how much of the sample will remain?

50 grams

100 grams

200 grams

25 grams

400 grams

Tags

NGSS.HS-PS1-8

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much of the original sample would you have if you ended with a 10 gram sample and 3 half lives had occurred?

40 grams

60 grams

30 grams

15 grams

80 grams

Tags

NGSS.HS-PS1-8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If 50% of a radioactive substance remains after one half-life, how much will remain after two half-lives?

25%

50%

75%

Cannot be determined

Tags

NGSS.HS-PS1-8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2 hours have passed. A half life is 1 hour. How much of your original sample would you expect to have?

12.5%
6.25%
50%
25%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If 4 half lives have passed and 1 half life is 30 minutes, how much time passed?

30 minutes

60 minutes

120 minutes

Not enough information is given

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