Fission vs Fusion Atom Review Jeopardy Warm Up

Fission vs. Fusion Atom Review Jeopardy

Warm - Up • Answer the questions on the half-sheet on your desk

Warm - Up • Write the accomplishment of the scientists listed below – Democritus – Dalton – Thomson – Millikan – Rutherford – Bohr – Schrodinger

Objective • Today I will be able to: – Distinguish between different types of radiation with respect to their penetration power. – Complete a Venn Diagram to compare and contrast nuclear fission and fusion. – Apply concepts about the atom to reviewing for an exam

Homework • Study for the Exam Thursday

Agenda • • • Warm – Up Fission vs. Fusion Notes Fission vs. Fusion Venn Diagram Jeopardy Questions? Exit Ticket

Nuclear Fission and Fusion Notes

Nuclear Fission • A heavy nucleus splits into more stable nuclei of intermediate mass.

Atomic Bombs • Atomic bombs are an example of Fission Reactions. • “Little boy” and “Fat man” were Atomic bombs made from fission reactions with uranium and plutonium respectively. • A fission chain reaction is started and continues until the bomb destroys itself.

Little Boy and Fat Man

Nuclear Power Plants map: Nuclear Energy Institute

Nuclear Power Plants • Uranium-235 undergoes nuclear fission and releases thermal (heat) energy. • This turns water to steam which spins turbines. • The turbines produce electrical energy. • Nuclear waste is fuel rods with unreacted uranium and radioactive products of fission. Right now this waste is buried in waste management facilities, like Yucca Mountain.

Maryland Nuclear Power Plant Calvert Cliffs is Maryland’s nuclear power plant

http: //www. cleanenergyinsight. org/wp-content/uploads/2010/03/yuccamountain. jpg

Nuclear Fusion • Low-mass nuclei combine to form a heavier, more stable nucleus.

Hydrogen Bombs • Hydrogen bombs are an example of nuclear fusion. • Two isotopes of hydrogen, 2 H and 3 H, fuse together and produce a lot of energy in the process. • H-bombs release significantly more energy than atomic bombs.

The Sun: Nuclear Fusion Sun + + + Four hydrogen nuclei (protons) Two beta particles (electrons) One helium nucleus Energy

Nuclear Fission Nuclear Fusion

Nuclear Fission A heavy atom splits into two or more lighter nuclei Ex: Atomic Bombs & Nuclear reactors Nuclear Fusion Release huge amounts of energy High temp and pressure are used to combine light atoms to make heavier atoms Produce nuclear waste Ex: Fuels the sun and stars & Hydrogen Bombs

Comparing Fission and Fusion http: //media-1. web. britannica. com/eb-media/03/72203 -035 -4 D 92 BDBC. jpg

Did You Know ? http: //www. ambrosevideo. com/resources/documents/89. jpg

The Next Slide • The next slide shows a great flow diagram that links a lot of radioactive decay concepts.

http: //images 4. wikia. nocookie. net/__cb 20060611033960/schools/images/0/0 b/Chart. JPG

Atomic Structure Review Sheet Complete the atomic structure review sheet at your desk. Ms. Ose has an answer key that will be posted on her website

Exit Ticket • Write down three questions that could be on the exam tomorrow. – One in each category • Atomic theory • Scientists • Radioactivity • Trade with a partner and have them respond • Check their answers