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Final Chemistry Notebook

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Learning Goal for this section:<br />

Explain and compare nucluear reactions ( radioactive decay,fission and fusion), the energy changes associated with<br />

them and their asscociated safety issues.<br />

Notes Section:<br />

lpha looks like the nuclues of a heluim particle. Becaus they both have 2 protons and two nuetrons<br />

aughter is what we eject the aftter alpha particle. It pushes the nuclues 2 meters in air due to the<br />

eason it doesnt have Enough energy. It ejects because it is trying to become a stable atom,<br />

hanges becasue of the condition of the nuclues. We use the periodic table to determine the new<br />

thing which woulld have two less.Polumiom will give off two and become lead to beacome stable. It<br />

s not necasary to get stable only accurs sometimes.<br />

eta have the mass of electron it has very small amount of mass.It is negative. We wil take give<br />

wyay aelectrons so it becomes a proton . Its basically another way to make it nueatral. Cannot cau<br />

oves little further then beta.The betta goes up by 1.<br />

or example<br />

ranium becomes neptium becuse uranium adds one to become NP.<br />

roton give its postive charge to become nuertral. It makes it less table which makes it transform.<br />

Beta particles decay<br />

e+<br />

IN this situation the proton gives off it postive charge by going up one because the postive gives<br />

away to become nuetral.<br />

WHile E- it goes down 1<br />

Gamma radiation has to go through a transformation such as alpha particle decay or beta decay<br />

cause gamma radiation but slighty sometimes it does not<br />

Half life;<br />

After two days you would have half the mass due to the fact that it goes through a two day procce<br />

Mon=100g<br />

tues-less<br />

wen-less]'<br />

thur=25g<br />

sat-less<br />

sun-12.5.g<br />

52

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