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Nuclear Chemistry

Total questions: 70

Worksheet time: 35mins

Name
Class
Date
1.
What do these symbols represent?
a)
alpha particle
b)
beta particle
c)
neutron
d)
gamma ray
2.
How many protons are in this atom?
a)
3
b)
4
c)
6
d)
10
3.
What do you call the energy required to prevent the protons in the nucleus from repelling?
a)
nuclear energy
b)
binding energy
c)
radioacitve energy
d)
electromagnetic energy
4.
How many neutrons are in this isotope of Uranium?
a)
235
b)
92
c)
327
d)
143
5.
How are these isotopes different?
a)
Different atomic numbers
b)
Different number of protons
c)
Different number of neutrons
d)
Different number of electrons
6.
What do these symbols represent?
a)
alpha particle
b)
beta particle
c)
neutron
d)
gamma ray
7.
How many protons are in this atom?
a)
3
b)
4
c)
6
d)
10
8.
What do you call the energy required to prevent the protons in the nucleus from repelling?
a)
nuclear energy
b)
binding energy
c)
radioacitve energy
d)
electromagnetic energy
9.
How many neutrons are in this isotope of Uranium?
a)
235
b)
92
c)
327
d)
143
10.
How are these isotopes different?
a)
Different atomic numbers
b)
Different number of protons
c)
Different number of neutrons
d)
Different number of electrons
11.
What process is modeled by the equation?
a)
alpha decay
b)
beta decay
c)
fission
d)
fusion
12.
What process is modeled with this equation?
a)
alpha decay
b)
beta decay
c)
fission
d)
fusion
13.
What is the mass number of at isotope that has 20 protons, 21 neutrons and 18 electrons?
a)
18
b)
20
c)
21
d)
41
14.
What is one problem with using nuclear fission as an energy source?
a)
finding radioactive elements that have longer half-lives
b)
finding ways of storing radioactive wastes
c)
finding compounds to cool heated water
d)
finding non-radioactive elements for reactors
15.
What type of nuclear equation is this?
a)
fusion
b)
fission
c)
alpha
d)
beta
16.
What sort of shield will block gamma rays?
a)
skin
b)
paper
c)
aluminum
d)
thick lead
17.
Which nuclear process is shown in the picture?
a)
fission
b)
fusion
c)
alpha decay
d)
beta decay
18.
In a neutral atom, the number of protons always equals
a)
the number of neutrons.
b)
the number of electrons.
c)
the mass number.
d)
the average atomic mass.
19.
Why does an atom undergo beta decay?
a)
It has too many electrons.
b)
It has an atomic number greater than 83
c)
It has more neutrons than protons
d)
It has more protons than neutrons
20.
What happens to the atomic number during alpha decay?
a)
The atomic number decreases by 4
b)
The atomic number increases by 1
c)
The atomic number decreases by 2.
d)
The atomic number stays the same.
21.
Which process involves the joining of small nuclei?
a)
Beta decay
b)
Alpha decay
c)
Nuclear fission
d)
Nuclear fusion
22.
Which process involves the splitting of large nuclei?
a)
Beta decay
b)
Alpha decay
c)
Nuclear fission
d)
Nuclear fusion
23.
The time taken for half of an amount of radioactive atoms to decay.
a)
Nuclear fusion
b)
Full-life
c)
Dead time
d)
Half-life
24.
The nuclear process occurring at a nuclear power plant.
a)
Nuclear fusion
b)
Nuclear fission
c)
Combustion
d)
Multiplication
25.
Arrange in order of increasing ability to penetrate matter.
a)
Beta, gamma, alpha
b)
Alpha, gamma, beta
c)
Gamma, beta, alpha
d)
Alpha, beta, gamma
26.
Complete the sentence: As time passes the level of radiation produced by a radioactive material...
a)
Decreases
b)
Increases
c)
Remains constant
27.
Classify this process.
a)
Nuclear fission
b)
Nuclear fusion
c)
Alpha decay
d)
Beta decay
28.

After one ____________ of a radioactive element, half of the original radioactive material remains.

a)

half-life

b)

cycle

c)

decay

29.

In ___ _____reactions, small nuclei combine, producing a large nucleus and releasing large amounts of energy.

a)

nuclear fission

b)

nuclear fusion

30.

spontaneous emission from the nucleus of an atom

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

31.

emitted helium nucleus

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

32.

energetic electron from decomposed neutron

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

33.

high-energy photons emitted by a radioisotope

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

34.

What process is described by the splitting of a nucleus into smaller nuclei?

a)

fusion

b)

fission

c)

half-life

d)

gamma radiation

35.

What process describes two small nuclei combining into a larger nucleus?

a)

fission

b)

fusion

c)

alpha decay

d)

beta decay

36.

How do nuclear power-plants work?

a)

Fusion

b)

Half-life

c)

Fission

d)

Fusion or fission

37.

What nuclear process is shown in the picture?

a)

alpha decay

b)

gamma emission

c)

fusion

d)

fission

38.

Which nuclear process if shown in the picture?

a)

alpha decay

b)

beta decay

c)

fusion

d)

fission

39.
What is a benefit of nuclear fission?
a)
The ability to absorb energy
b)
The ability to release tremendous amounts of energy
c)
The ability to produce more energy than nuclear fusion
d)
There are no beneficial aspects of nuclear fission
40.

One disadvantage of nuclear energy produced through fission is ___.

a)

it is a fossil fuel

b)

it leaves behind radioactive waste

c)

it emits large amounts of pollution into the atmosphere

d)

there are no disadvantages

41.

Which material is responsible for initiating and continuing the chain reaction?

a)

neutron, 01n

b)

Uranium - 235, 23592U

c)

Krypton - 90, 9036Kr

d)

Barium - 144, 14456Ba

42.

Which of the following is NOT a true statement about nuclear fission?

a)

big atoms split apart

b)

it occurs naturally

c)

it produces radioactive waste

d)

it releases less energy than fusion

43.
Which of the following is true about nuclear fusion?
a)
It is easy to implement.
b)
It produces less energy than nuclear fission.
c)
It produces more energy than nuclear fission.
d)
It has the ability to occur easily in everyday life.
44.

Hydrogen bombs are created from which process?

a)

Fusion

b)

Fission

45.

Atomic bombs are created from which process?

a)

Fusion

b)

Fission

46.

In the equation E=mc2, which of the following correctly represents one or constants?

a)

M=the sum of the masses

b)

E= the amount of energy absorbed

c)

C2= the speed of light

d)

All of the above

47.

In nuclear reactions--

a)

a large amount of matter produces a small amount of energy.

b)

a small amount of matter produces a large amount of energy.

48.
An example of an uncontrolled fission reaction is _______________
a)
Nuclear power plants
b)
Radio active decay
c)
Atomic Bomb
d)
On the surface of the sun
49.
What is a benefit of nuclear fission?
a)
The ability to absorb energy
b)
The ability to release tremendous amounts of energy
c)
The ability to produce more energy than nuclear fusion
d)
There are no beneficial aspects of nuclear fission
50.
The major drawback to nuclear fission reactors is the difficulty of achieving safe disposal of radioactive waste products.
a)
true
b)
false
51.

One type of radioactive device that indicates the intensity of radiation with a clicking sound that increases in frequency as more radiation is present is a(n) ____.

a)

bubble chamber

b)

cloud chamber

c)

electroscope

d)

Geiger counter

52.
Where does fusion occur naturally?
a)
Underwater
b)
All around us
c)
In the radioactive waste
d)
On the sun
53.
What is the difference between a nuclear bomb and a nuclear power plant?
a)
Bomb releases energy all at once, power plant release is slow and controlled.
b)
Nothing much... pretty much the same.
c)
Power plant releases more energy, faster.
d)
One uses nuclear energy, one uses coal.
54.
What is an advantage  of nuclear energy?
a)
radioactive waste
b)
no pollution
c)
we will never run out
d)
it is the safest way to make energy
55.
All of the following are problems of nuclear energy except ---
a)
storage of radioactive fuel
b)
pollution
c)
security concerns
d)
natural disasters (tsunamis, earthquakes, etc.)
56.
The time needed for half of a radioactive sample to decay is called its __________.
a)
decay period
b)
period
c)
transmutation time
d)
half-life
57.

Which risk is associated with using nuclear fission to produce energy in a power plant?

a)

depletion of hydrocarbons

b)

depletion of atmospheric oxygen

c)

exposure of workers to radiation

d)

exposure of workers to sulfur dioxide

58.

A serious risk factor associated with the operation of a nuclear power plant is the production of

a)

acid rain

b)

helium gas

c)

greenhouse gases, such as CO2

d)

radioisotopes with long half-lives

59.

Chemical reaction or nuclear reaction: involves only electrons

a)

chemical

b)

nuclear

60.

Chemical reaction or nuclear reaction: involves protons and neutrons

a)

chemical

b)

nuclear

61.

Chemical reaction or nuclear reaction: the mass does not change

a)

chemical

b)

nuclear

62.

Chemical reaction or nuclear reaction: some mass is converted to energy

a)

chemical

b)

nuclear

63.

Chemical reaction or nuclear reaction: small amounts of energy are released

a)

chemical

b)

nuclear

64.

Chemical reaction or nuclear reaction: enormous amounts of energy are released

a)

chemical

b)

nuclear

65.

Chemical reaction or nuclear reaction:

a)

chemical

b)

nuclear

66.

Chemical reaction or nuclear reaction:

a)

chemical

b)

nuclear

67.

Chemical reaction or nuclear reaction: The same elements are present before and after a reaction

a)

chemical

b)

nuclear

68.

Chemical reaction or nuclear reaction: Entirely new elements are formed in the reaction

a)

chemical

b)

nuclear

69.

Chemical reaction or nuclear reaction: The sun

a)

chemical

b)

nuclear

70.

Chemical reaction or nuclear reaction: Baking cookies

a)

chemical

b)

nuclear

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