Quiz on Energy and Essential Resources
Outlines
COURSE CODE (CC 88-167)
ENERGY AND ENVIRONMENT
Part II: Energy and Essential Resources
Chapter 5: Nuclear Power
1.
2.
3.
4.
5.
6.
Working principle
Nuclear reactors
Detection and safety issues
Radioactive wastes treatment
Comparison to other powers
Possible alternatives
1
Do you know?
2
Mass & Atomic Numbers
Isotopes
All of the following are possible sources of radiation except
a. background radiation from the Earth’s crust. b. nuclear waste.
c. medical & dental X-rays.
d. distilled water.
A
Z
X
Symbol
12
13
14
6
6
6
C
Carbon-12
C
C
Carbon-13 Carbon-14
• Mass number (A) =
– No. of __________ + No. of __________ in the nucleus of an atom
• Atomic number (Z) =
3
– No. of _____________ in the nucleus of an atom
– No. of _____________ in the neutral atom
4
Isotopes
Types of Radiation
• Contain different no. of __________ but the same no. of __________ & __________
• Behave the same chemically but other characteristics may differ profoundly
•
1.
2.
3.
•
•
Natural radioactive materials
–
–
–
__ Rays ( 4He/ 4 )
2
2
Made up of
__ Rays (
0
-1
Made up of
particles (Helium nucleus minus 2e–), +2
0
/ -1 e)
particles (Electron), negligible mass
__ Rays ( 0 )
0
Similar to X-rays, No mass, high-energy _____________
_________________ with very short wavelength
Not emitted simultaneously
Have sufficient energy to break chemical bonds, thus disrupt living organisms
5
6
EM Spectrum Properties
7
8
1. From Mass to Energy
•
Nuclear Fission & Fusion
Nuclear energy
– Different from burning fuels/other chemical reactions
– Involves changes at the atomic level
– Released from either
1. Fission (A large atom of 1 element is _________________
2 atoms of different elements)
2. Fusion (2 small atoms _________________ a larger atom of a different element)
9
Fuel Element (235U)
COURSE CODE (CC 88-167)
ENERGY AND ENVIRONMENT
Part II: Energy and Essential Resources
Chapter 5: Nuclear Power
1.
2.
3.
4.
5.
6.
Working principle
Nuclear reactors
Detection and safety issues
Radioactive wastes treatment
Comparison to other powers
Possible alternatives
1
Do you know?
2
Mass & Atomic Numbers
Isotopes
All of the following are possible sources of radiation except
a. background radiation from the Earth’s crust. b. nuclear waste.
c. medical & dental X-rays.
d. distilled water.
A
Z
X
Symbol
12
13
14
6
6
6
C
Carbon-12
C
C
Carbon-13 Carbon-14
• Mass number (A) =
– No. of __________ + No. of __________ in the nucleus of an atom
• Atomic number (Z) =
3
– No. of _____________ in the nucleus of an atom
– No. of _____________ in the neutral atom
4
Isotopes
Types of Radiation
• Contain different no. of __________ but the same no. of __________ & __________
• Behave the same chemically but other characteristics may differ profoundly
•
1.
2.
3.
•
•
Natural radioactive materials
–
–
–
__ Rays ( 4He/ 4 )
2
2
Made up of
__ Rays (
0
-1
Made up of
particles (Helium nucleus minus 2e–), +2
0
/ -1 e)
particles (Electron), negligible mass
__ Rays ( 0 )
0
Similar to X-rays, No mass, high-energy _____________
_________________ with very short wavelength
Not emitted simultaneously
Have sufficient energy to break chemical bonds, thus disrupt living organisms
5
6
EM Spectrum Properties
7
8
1. From Mass to Energy
•
Nuclear Fission & Fusion
Nuclear energy
– Different from burning fuels/other chemical reactions
– Involves changes at the atomic level
– Released from either
1. Fission (A large atom of 1 element is _________________
2 atoms of different elements)
2. Fusion (2 small atoms _________________ a larger atom of a different element)
9
Fuel Element (235U)