Free Printable Unit 4 - Nuclear Chemistry Exam Practice

1.

What particle completes this reaction?

a)

alpha particle

b)

beta particle

c)

gamma particle

d)

neutron

2.

Complete the nuclear equation and determine the type of decay that is occurring in this reaction.

a)

alpha

b)

beta

c)

gamma

d)

none

3.

Solve this equation for alpha decay.
²⁰⁹₈₅At = ___ + ⁴₂He

a)

²⁰⁵₈₃Bi

b)

²⁰⁹₈₆Rn

c)

²⁰⁷₈₁Tl

d)

²⁰⁸₈₅At

4.

Solve this equation for alpha decay.
²²⁶₈₈Ra = ___ + ⁴₂He

a)

²²²₈₆Rn

b)

²²⁶₈₉Ac

c)

²²⁴₈₄Po

d)

²²⁵₈₈Ra

5.

Solve this equation for beta decay.
⁶⁰₂₇Co = ___ + ⁰_-1e

a)

⁵⁶₂₅Mn

b)

⁶⁰₂₈Ni

c)

⁵⁸₂₃V

d)

⁵⁹₂₇Co

6.

Solve this equation for beta decay.
¹⁴₆C = ___ + ⁰_-1e

a)

¹⁰₄Be

b)

¹⁴₇N

c)

^10₂He

d)

^13₆C

7.

The following is an example of what type of reaction?
²⁴³₉₅Am → ²³⁹₉₃Np + ⁴₂He

a)

alpha decay

b)

beta decay

c)

gamma decay

8.

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

a)

¹⁰₅B

b)

¹⁰₅Ne

c)

⁶₃Li

d)

⁶₃C

9.

Balance the following nuclear equation:

$\ \ \ \ \ \ \ \ \ \ \ _{13}^{27}Al\ +\ _0^1n\ \longrightarrow\ _{11}^{24}Na\ \ +\ \ \ ?$

a)

$\ \ \ _2^4He$

b)

$\ \ \ _2^5H$

c)

$\ \ \ _{13}^{42\ }Al$

d)

$\ \ \ _{14}^{25}Si$

10.

Balance the following nuclear equation:

$\ \ \ \ \ \ \ \ \ \ \ _{92}^{238}U\ +\ _0^1n\ \longrightarrow\ _{-1}^{\ \ \ 0}B\ \ +\ \ \ ?$

a)

$\ \ \ _{93}^{239}Np$

b)

$\ \ \ _{94}^{239}Pu$

c)

$\ \ \ _{93}^{238\ }Np$

d)

$\ \ \ _{94}^{238}Am$

11.

Balance the following nuclear equation:

$\ \ \ \ \ \ \ \ \ \ \ ?\ +\ _2^4He\ \ \ \ \longrightarrow\ \ \ _8^{17}O\ \ +\ \ \ _1^1H$

a)

$\ \ \ _7^{14}N\$

b)

$\ \ \ _9^{17}P$

c)

$\ \ \ _9^{14\ }F$

d)

$\ \ \ _8^{14}O$

12.

Balance the following nuclear equation:

$\ \ \ \ \ \ \ \ \ \ \ _{82}^{208}Pb\ +\ \ ?\ \ \ \ \longrightarrow\ \ \ _{112}^{277}Cn\ \ +\ \ \ _0^1n$

a)

$\ \ \ _{30}^{70}Zn\$

b)

$\ \ \ _{112}^{17}P$

c)

$\ \ \ _{40}^{70\ }Zr$

d)

$\ \ \ _8^{14}O$

13.

Balance the following nuclear equation:

$\ \ \ \ \ \ \ \ \ \ \ ?\ +\ \ _2^4He\ \ \ \ \longrightarrow\ \ \ _{\ \ \ 14}^{\ \ \ 30}\ Si\ +\ \ _1^1H$

a)

$\ \ \ _{13}^{27}Al$

b)

$\ \ \ _{15}^{27}Ar$

c)

$\ \ \ _{14}^{40\ }Si$

d)

$\ \ \ _8^{14}O$

14.

What are Isotopes?

a)

atoms of different elements with the same masses.

b)

atoms of different elements with different charges.

c)

atoms of the same element with different charges.

d)

atoms of the same element with different masses.

15.

Describe the structure of an alpha particle.

a)

a fast-moving electron

b)

2 protons and 2 neutrons

c)

a slow-moving neutron

d)

a hydrogen nucleus

16.

The mass number of Neptunium (Np) is (a) .

17.

What type of radiation is this (alpha, beta, or gamma)?

⁰₀y

(a)

18.

An alpha particle is sometimes written as

a)

⁴₂He

b)

⁰_-1e

c)

⁰₊₁e

d)

¹₀n

19.

What is the product of the alpha decay of Gold-175?

a)

Ir-171

b)

Tl-179

c)

Au179

d)

Au171

20.

Radioactive materials have unstable...

a)

electrons

b)

protons

c)

nuclei

d)

neutrons

21.

Isotopes are elements with a different amount of

a)

protons

b)

neutrons

c)

electrons

d)

nuclei

22.

Radioactive materials have unstable...

a)

electrons

b)

protons

c)

nuclei

d)

neutrons

23.

Two atoms of the same element but with different mass numbers are called________

a)

electrons

b)

isotopes

c)

ions

d)

reaction partners

24.

Isotopes are elements with a different amount of

a)

protons

b)

neutrons

c)

electrons

d)

nuclei

25.

How many neutrons does this isotope of lithium have?

a)

8

b)

3

c)

11

d)

5

26.

What do these isotopes of carbon all have in common?

a)

neutrons & mass number

b)

atomic number and neutrons

c)

atomic number and electrons

d)

protons, atomic number, and mass number

27.

How many neutrons in C-14?

a)

6

b)

7

c)

14

d)

8

28.

True or False:

Radon Gas can enter one's home through cracks, windows, pipes, and any other exposure to the surrounding soil

a)

True

b)

False

29.

What kind of health risk does radon gas pose?

a)

Lung Cancer

b)

Colon Cancer

c)

Skin Cancer

d)

Hypothermia

30.

Why do lab technicians place a lead (Pb) apron on the body when taking x-rays?

a)

To protect against ionizing radiation on vital organs

b)

To help people stay still

c)

To reduce interference for the x-ray machine

d)

To raise the body temperature

31.

Damage to which molecule in the body is of greatest concern when people are exposed to ionizing radiation?

a)

Proteins and DNA

b)

H20

c)

Fats

d)

Carbohydrates

32.

The term given to unstable radioactive atoms.

a)

Parent

b)

Daughter

c)

Half Life

d)

Igneous

33.

The % of the parent isotope remaining after 1 Half Life.

a)

50%

b)

25%

c)

12.5%

d)

6.25%

34.

The % of the parent isotope remaining after 2 Half Lives.

a)

50%

b)

25%

c)

12.5%

d)

6.25%

35.

The diagram shows 32 atoms.

16 of the Red are parent isotopes

16 of the Green are daughter isotopes

How many half-lives have occurred?

a)

0

b)

1

c)

2

d)

3

36.

What is the Half life of this isotope?

a)

5 seconds

b)

10 seconds

c)

15 seconds

d)

20 seconds

37.

What is the Half Life of this isotope?

a)

3 days

b)

5 days

c)

8 days

d)

10 days

38.

How much sample is remaining after 10 days?

a)

10%

b)

40%

c)

20%

d)

50%

39.

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.

a)

1.25mg

b)

1.25g

c)

10g

d)

10mg

40.

You have 100 grams of radioactive C-14. The half life of C-14 is 5730 years.
How many grams are left after 1 half life?

a)

100 grams

b)

25 grams

c)

2 grams

d)

50 grams

Unit 4 - Nuclear Chemistry Exam Practice

Total questions: 40

Worksheet time: 51mins

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