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Nuclear chemistry

Total questions: 15

Worksheet time: 18mins

Name
Class
Date
1.

Alpha particles contain ____________.

a)

two protons and two electrons

b)

two electrons and two neutrons

c)

four electrons

d)

two protons and two neutrons

2.

Radioactivity can be harmful and cause disease because it affects __________.

a)

air

b)

water

c)

cells

d)

blood

3.

Gamma rays _________.

a)

have no mass and no charge

b)

have mass but no charge

c)

have no mass but have charge

d)

have both mass and charge

4.

List the types of radiation from most to least penetrating.

a)

Alpha , Beta, Gamma

b)

Beta , Gamma , Alpha

c)

Gamma, Beta, Alpha

d)

Gamma, Alpha, Beta

5.
In a nuclear reactor what slows down neutrons?
a)
Control Rods
b)
Moderator
c)
Sheilding
d)
The brakes
6.

The high energy yields created by nuclear fission are due to...

a)

binding nuclei.

b)

hydrogen bonding.

c)

secondary recovery.

d)

chain reactions.

7.

Which of the following BEST describes what occurs in a fusion reaction?

a)

Two low mass nuclei are joined to form one nucleus and gives off energy.

b)

A single nucleus divides into two or more nuclei and gives off energy.

c)

Electrons are shared between the nuclei.

d)

A chemical reaction occurs between the nuclei.

8.
Which of the following is a disadvantage of nuclear energy as a power source?
a)
Nuclear energy produces less energy than the burning coal
b)
Nuclear energy produces air pollution
c)
Nuclear waste must be safely stored
d)
The fuel source is very limited
9.
During fission, some of the nuclear mass is converted into
a)
energy
b)
heavier nuclei
c)
critical mass
d)
protons
10.
What is not true about fission reactions at power plants?
a)
They are exothermic
b)
They produce a lot of energy
c)
They are uncontrolled and fast
d)
They are slow and controlled
11.
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
12.
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.
13.
The nuclear process occurring at a nuclear power plant.
a)
Nuclear fusion
b)
Nuclear fission
c)
Combustion
d)
Multiplication
14.

Which is not a part of an atom's nucleus?

a)

neutron

b)

proton

c)

electron

d)

all are part of the nucleus

15.

Which type of radiation has the greatest penetrating power?

a)

Alpha particle

b)

Beta particle

c)

Gamma ray

d)

Neutron emission