WorksheetsChemistry Unit 2 Study Guide (Nuclear Radiation)
Total questions: 22
Worksheet time: 22mins
What is the atomic number of uranium (U)?
92
91
93
89
Elements with atomic numbers above uranium are called ____________ elements.
Transuranium
Transmutation
Radioactive
Stable
All elements transuranium elements undergo _____________, or the conversion of an atom of one element into an atom of another element.
Fission
Transuranium
Transmutation
Fusion
List 2 factors that affect chemical reactions, but NOT nuclear reactions.
(a)
What does an alpha particle consist of?
High energy photons
A He (Helium) nucleus (2 protons, 2 nuetrons)
An electron
What is the charge of a Alpha particle
-1
+2
+4
0
What is the charge of a Beta particle
-1
+2
+4
0
What is the charge of a Gamma particle
-1
+2
+4
0
What does a beta particle consist of
High energy photons
Neutrons
A Helium Nucleus
An electron
What are gamma rays made from?
nothing
High energy photons
An electron
He Nucleus
How is the atomic number of a nucleus chnaged by alpha decay?
No Change
Increases by 1
Decreases by 2
How is the atomic number of a nucleus changed by beta decay?
No change
Decreases by 2
Increases by 1
How is the atomic number of a Nucleus changed by gamma decay?
No Change
Decreases by 2
Increases by 1
How does alpha decay affect the mass number of a nucleus?
(a)
How does beta decay affect the mass number?
(a)
During beta decay, a neutron breaks down into a ______, and ______
(a)
Rank the penetrating power of the three types of radiation, from least penetrating to most penetrating.
B<a<y
a<B<y
y<B<a
y<a<B
When polonium-210 decays by alpha radiation, what isotope is formed?
210/84 Po ---> 4/2 He + (206/82 Pb)
210/84 Po ---> 4/2 He + (214/86 Rn)
210/84 Po ---> 4/2 He + (53/42 Mo)
210/84 Po ---> 4/2 He + (204/80 Hg)
The ______ -to- _______ ratio determines the stability of an atom. That ideal ratio is _:_
electron, proton
2:3
Proton, neutron
1:1
electron, electron
-1:4
proton, neutron
-1:-1
All isotopes with an atomic number greater than that of lead (Pb, atomic number 82) are (a) .
Our sun performs nuclear ______ to combine two atoms of _________ to produce an atom of _______.
Fission, hydrogen, helium
Fusion, helium, hydrogen
Fission, helium, oxygen
Fusion, hydrogen, helium
What is the two major obstacles to the use of nuclear fusion as an energy source on Earth?
(a)
