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Atomic Structure and Nuclear Chemistry

Total questions: 41

Worksheet time: 41mins

Name
Class
Date
1.

What are the subatomic particles?

a)

Protons, Electrons, Neutrons

b)

Molecules, and atoms

c)

Electrons, Protons, Nucleus

d)

Nucleus, and Electrons

2.

What is this subatomic particle that has positive charge?

a)

Electron

b)

Neutron

c)

Proton

d)

Megatron

3.

What is this subatomic particle that has negative charge?

a)

Electron

b)

Neutron

c)

Proton

d)

Megatron

4.

What is this subatomic particle that has no charge?

a)

Electron

b)

Neutron

c)

Proton

d)

Megatron

5.

What is the smallest particle of an ELEMENT, and it has also all the properties of it?

a)

Molecules

b)

Nucleus

c)

Subatomic particle

d)

Atoms

6.

What is the small, DENSE REGION consisting of protons and neutrons at the CENTER of an atom?

a)

Molecules

b)

Nucleus

c)

Subatomic particle

d)

Atoms

7.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
8.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
9.

What is the atomic number?

a)

35

b)

18

c)

17

d)

52

10.

How many protons and electrons does this element have?

a)

35

b)

18

c)

17

d)

52

11.

How many neutrons does Chlorine have?

a)

18

b)

17

c)

35

d)

52

12.

What is the atomic mass of Neon?

a)

10

b)

20

c)

30

13.

How many neutrons does calcium have?

a)

20

b)

40

c)

60

d)

0

14.

What is the atomic mass of Arsenic?

a)

33

b)

107

c)

75

15.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
16.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
17.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
18.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
19.

If the atomic mass is not given, how do we calculate it?

a)

(protons) + (electrons)

b)

(atomic mass) - (atomic number)

c)

(protons) - (neutrons)

d)

(protons) + (neutrons)

20.

How do we calculate the number of neutrons in an atom?

a)

(atomic number) - (atomic mass)

b)

(atomic mass) - (atomic number)

c)

(atomic mass) + (atomic number)

d)

atomic mass only

21.
Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208.  The average atomic mass of lead is 207.2.  Which isotope of lead is likely to be the most abundant.
a)
204
b)
206
c)
207
d)
208
22.
What is the name of the pictured isotope?
a)
Copper-29
b)
Copper-63
c)
Copper-34
d)
CopperWopperHopperBopper
23.
How is carbon-12 different from carbon-14?
a)
They have a different number of protons
b)
they have a different number of electrons
c)
they have a different number of neutrons
24.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
25.

Bob read about growing plants in water. He wanted to know how plants could grow without soil.

a)

coming up with a question

b)

test the hypothesis with an experiment

c)

form a hypothesis

d)

draw conclusions

26.
Information you obtain through your senses, such as touch, sound and sight.
a)
observation
b)
hypothesis
c)
question
d)
conclusion
27.
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
28.
What element is often used in nuclear reactions?
a)
Hydrogen
b)
Uranium
c)
Oxygen
d)
Mercury
29.
Most nuclear reactors use:
a)
Fission
b)
Fusion
30.

The three types of nuclear radiation are _______ radiation, _________radiation, and _____________ radiation.

a)

alpha, beta, and gamma

b)

theta, beta, and kappa

c)

alpha, beta, positron

31.

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

a)

half-life

b)

cycle

c)

decay

32.

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

a)

nuclear fission

b)

nuclear fusion

33.

emitted helium nucleus

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

34.

energetic electron from decomposed neutron

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

35.
Which of the following is an example of nuclear fusion? 
a)
A plutonium atom is used to start a chain reaction that detonates a nuclear weapon 
b)
A uranium atom is split apart into lighter elements
c)
 Two hydrogen atoms are combined to form a helium atom
d)
Two hydrogen atoms bond with an oxygen atom to form a water molecule 
36.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
Beta
c)
Gamma 
d)
none
37.
Which type of nuclear radiation is being emitted here along with Rn
a)
alpha
b)
beta
c)
gamma
d)
none
38.
This is an example of...
a)
Fission  reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Combustion
39.
How does nuclear fusion compare to nuclear fission? 
a)
Nuclear fusion produces no radioactive waste
b)
Nuclear fusion produces more radioactive waste
c)
. Nuclear fusion is cheaper and easier to produc
d)
Nuclear fusion requires rare, expensive elements to work
40.
If Thorium-234 undergoes a beta decay, What element will be left in its place?
a)
Actinium-234
b)
Thorium-233
c)
Protactinium-234
d)
Radium-230
41.
If we start off with element 5024X after an alpha decay we get another element Y that looks like
a)
5022Y
b)
 4622Y
c)
4820Y
d)
5426Y

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