WorksheetsAtomic Theory & Nuclear Review
Total questions: 17
Worksheet time: 22mins
Name
Class
Date
1.
What form of radiation has the most energy?
a)
Alpha
b)
Beta
c)
Gamma
d)
Ionizing
2.
Which of the following element symbol matches the correct number of subatomic particles?
a)
Li, 3 Protons, 5 Electrons
b)
C, 7 Protons, 6 Electrons
c)
S, 16 Protons, 19 Electrons
d)
Pb, 82 Protons, 82 Electrons
3.
When the "beam" in the cathode ray tube bent due to a magnet, JJ Thomson came to what conclusion?
a)
The particles are negatively charged
b)
The particles are positively charged
c)
the particles are larger than the nucleus
d)
the particles are larger then the nucleus
4.
Dalton's atomic theory stated all of the following except?
a)
Atoms of the same element are always the same
b)
Atoms can freely changed to any other atom
c)
Atoms can bond in whole number ratios
d)
All of the above
5.
What does Potassium-40 decay into when it emits a positron?
a)
Calcium-40
b)
Argon-40
c)
Potassium-39
d)
None of these
6.
How can you write Carbon-12 in shorthand?
a)
12
6 C
6 C
b)
6
12 C
12 C
c)
C-6
d)
6-C
7.
When two Hydrogen atoms combine together (this happens in the sun), we call it ___?
a)
Fission
b)
Fusion
c)
Alpha Decay
d)
Beta Decay
8.
The Nucleus of an atom is ?
a)
Positively charged and small
b)
Negatively charged and small
c)
Positively charged and large
d)
Negatively charged and large
9.
What is the atomic mass of Lead (Pb)
a)
207.2
b)
200
c)
358
d)
82
10.
Alpha and Beta decay differ from gamma in what way?
a)
Gamma radiation has less energy
b)
Gamma decay consists of all protons
c)
Gamma decay increases the mass of the atom
d)
Gamma decay doesn't change the mass of the atom
11.
What type of radiation cannot travel through a piece of paper
a)
Alpha
b)
Beta
c)
Gamma
d)
Ionic
12.
All Isotopes of an element ?
a)
Have different numbers of Neutrons
b)
Have different numbers of Protons
c)
Have different numbers of Electrons
d)
Look the same but have a new name
13.
What did Rutherford conclude from his Gold Foil Lab
a)
All atoms have electrons
b)
All atoms have protons
c)
The nucleus of an atom can be split
d)
Atoms are mostly empty space
14.
What causes the chain reaction seen in fission reactions to happen?
a)
Gamma radiation being released
b)
Extra neutrons being released after the atom splits
c)
There isn't a chain reaction
d)
energy being absorbed during fission
15.
Alpha particles can be written like ___?
a)
4
2 He
2 He
b)
2
4 He
4 He
c)
0
-1 e
-1 e
d)
-1
0 e
0 e
16.
How many neutrons are in Oxygen-16
a)
7
b)
8
c)
9
d)
16
17.
What does plutonium-239 decay into when it emits a beta particle?
a)
Am-239
b)
Np-239
c)
U-235
d)
None of these
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