Nuclear Chemistry | 205 plays

1.

Multiple Choice

30 sec

1 pt

The time required for half of a sample of a radioactive substance to undergo nuclear decay is called __________.

Decay Time

Half Life

Atoms don't decay

Isotope time

2.

Multiple Choice

30 sec

1 pt

Which type of radiation is most penetrating?

Gamma

They are equal

Beta

Alpha

3.

Multiple Choice

30 sec

1 pt

Which produces more energy--nuclear fission or nuclear fusion?

Fusion

Fission

They produce the same amount

It depends on the elements used

4.

Multiple Choice

30 sec

1 pt

When one large nucleus is split into two smaller nuclei, the process is nuclear _____.

Fusion

Fission

Tracing

Decay

5.

Multiple Choice

30 sec

1 pt

Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.

Fusion

Fission

Tracing

Decay

6.

Multiple Choice

30 sec

1 pt

Beta particles have a _____ charge

+1

0

-1

+2

7.

Multiple Choice

30 sec

1 pt

How much Iodine-125 will remain after 100 years if the original sample had a mass of 80 grams and the half-life of I-125 is 25 years?

20 grams

2.5 grams

5 grams

10 grams

8.

Multiple Choice

3 mins

1 pt

Which type of reaction does the diagram illustrate?

Fission

Fusion

Alpha Decay

Beta Decay

9.

Multiple Choice

3 mins

1 pt

For the balanced equation, which particle is represented by X?

⁰_-1e

¹₁H

⁴₂H

¹₀n

10.

Multiple Choice

3 mins

1 pt

Which reaction represents fusion?

11.

Multiple Choice

3 mins

1 pt

Which reaction represents fission?

12.

Multiple Choice

15 mins

1 pt

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

13.

Multiple Choice

1 min

1 pt

After 22,800 years, approximately what percentage of the original carbon-14 remains?

15%

12.5%

6.25%

3.125%

14.

Multiple Choice

2 mins

1 pt

What is the half-life of iodine-131?

32 days

8 days

16 days

24 days

15.

Multiple Choice

1 min

1 pt

What particle completes this reaction?

alpha particle

beta particle

gamma particle

neutron

16.

Multiple Choice

2 mins

1 pt

What is the symbol for an alpha particle?

⁴₂He

⁰_-1e

⁰₊₁e

¹₀n

17.

Multiple Choice

2 mins

1 pt

What is the missing isotope that will balance the following nuclear equation?
⁹₄Be + ¹₁H → _____ + ⁴₂He

¹⁰₅B

¹⁰₅Ne

⁶₃Li

⁶₃C

18.

Multiple Choice

15 mins

1 pt

Which type of nuclear radiation is being emitted here?

Alpha

beta

gamma

none

19.

Multiple Choice

1 min

1 pt

Has the highest penetrating power. Can penetrate our body. Even several cm thick of lead or several meters thick of concrete cannot stop all of it.

Alpha

Beta

Gamma

20.

Multiple Choice

1 min

1 pt

Has the symbol

Alpha

Beta

Gamma

Explore this activity with a free account