7.3 Nuclear Energy. Parts of an Atom Subatomic particles –Proton (+) –Neutron 0 –Electron (-)

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Presentation transcript:

7.3 Nuclear Energy

Parts of an Atom Subatomic particles –Proton (+) –Neutron 0 –Electron (-)

Uranium Element Heavy Metal Silver and lustrous It tarnishes slowly in air Reacts with boiling water Uranium ore – rocks + metal Pure Uranium Metal

Protons= 92 Neutrons = 146 Electrons = 92 Uranium Atom

Isotope Atom lose or gain neutrons Changes the mass of an atom

Nuclear Fission Splitting the atom by the breaking up of nuclei Releases energy Nuclear power plants Atomic bombs

Radioactive Gives off energy Emit radiation Alpha rays Beta rays Gamma rays

Uranium Mine Dig for uranium ore

Uranium Mill Uranium ore (rock) is processed Pure metal is extracted from the rock

Tailings Debris produced by mining If these uranium tailings are left on the surface and allowed to dry out The radioactive sand can be carried great distances by the wind, entering the food chain and bodies of water. food chain

Nuclear Power Plant Converts uranium metal by fission into electricity

Nuclear Reactor Site of fission – splits uranium

Fuel Rod Rods that contain pellets of uranium

Control Rod Used to “control” the reaction Keeps the reactor safe Absorbs neutrons

Core Portion of a nuclear reactor containing the nuclear fuel components where the nuclear reactions take place

Chain Reaction A process in which neutrons released in fission produce an additional fission in at least one further nucleus. This nucleus in turn produces neutrons, and the process repeats. The process may be controlled (nuclear power) or uncontrolled (nuclear weapons).

Meltdown Melting of the core Three Mile Island, PA, USA Chernobyl, Russia

Nuclear Waste Radioactive Waste Used fuel rods stored in sealed containers

Effects of Uranium Radiation The effects of the uranium war came home in the bodies of the veterans that participated in the fist war of Golf Soldiers transmitted to their women the destructives genetic effects in the “ardent sperm” Women passed it to their children that were born with no arms and other mutations.

Nuclear Depletion Small amounts of uranium in the environment Bad effects on health and environment

Tons of uranium has fallen over Iraq and Afghanistan. The effects of the metal powder deployed on the winds, the sand storms, the water, the soil and the living creatures affect also a big region that is breathing particles of uranium in Iran, Pakistan, Turkey, Turkmenistan, Uzbekistan, Russia, Georgia, Azerbaijan, Kazakhstan, China, India, Saudi Arabia, Syria, Lebanon, Palestine, and Israel.

Leukemia Cancer of blood cells Fatigue Malaise (vague feeling of bodily discomfort) Abnormal bleeding Excessive bruising Weakness Reduced exercise tolerance Weight loss Bone or joint pain Infection and fever Abdominal pain or "fullness" Enlarged spleen, lymph nodes, and liver