Chemistry 5-5-09 Types of Radioactive Decay
Here’s a pic of uranium ore under UV light. Cool, huh! Here’s the lecture from Tuesday on the types of radioactive decay. It also includes how to write nuclear equations. Don’t forget to memorize the nuclear symbols for alpha particles, beta particles (electrons), positrons, neutrons, and protons. Aren’t you glad there aren’t 17 types of nuclear equations?!? 
May 6th, 2009 at 4:59 PM
how do beta emission, positron emission, and electron capture affect the neutron-proton ratio?
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May 6th, 2009 at 6:32 PM
How will we know if it is gamma decay?
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May 6th, 2009 at 7:16 PM
when will you use the 1 over o n in a radioactivity problem?
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May 6th, 2009 at 8:18 PM
How are artificial radioactive isotopes produced?
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May 6th, 2009 at 9:35 PM
What is the difference between the two types of half-life problems?
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May 6th, 2009 at 9:37 PM
What is the formula for beta?
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May 6th, 2009 at 9:50 PM
what’s nuclear decay
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May 6th, 2009 at 9:52 PM
Is it alpha that’s helium and beta that can be an electron?
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May 6th, 2009 at 10:13 PM
I’m thoroughly confused on these. It’s weird, these are supposed to be easy but i got stoichiometry and everything else in a heartbeat but these I just don’t get I hope I do in the next few classes.
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May 7th, 2009 at 9:59 AM
what are the two kinds of half-life problems?
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Macee Rush Reply:
May 7th, 2009 at 8:59 PM
One is to find mass and one is to find time…(i think)
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May 7th, 2009 at 10:59 AM
so is the decomposition of the elements based on the amount of radiation emitted?
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May 7th, 2009 at 12:19 PM
What are some of the formulas we can possible use to solve the nuclear problems?
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May 7th, 2009 at 12:33 PM
macy Morris: the two kinds of problems are problems with mass and time
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May 7th, 2009 at 3:26 PM
Do we have to use the formulas for solving HL problems?
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May 7th, 2009 at 6:16 PM
Allen Wade…
you have to show your work
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May 7th, 2009 at 6:54 PM
Nathaniel: For mass problems you can use this formula:
Mass final=mass initial (.5)^n, where n means how many half-lives.
For time, you can use this formula:
Total Time = number of half-lives times the amount of one half-life
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May 7th, 2009 at 7:13 PM
I dont know what the differance of aplha emission and beta emission is?
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Austin Welch Reply:
May 8th, 2009 at 12:20 AM
alpha rays are weaker than beta rays, they can be stopped with a peice of paper
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May 7th, 2009 at 8:01 PM
What is the definition for half life?
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May 7th, 2009 at 8:07 PM
Taylor, half-life is the time required for half the atoms of a radioactive nuclide to decay
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May 7th, 2009 at 8:09 PM
What is the differnce between mass and time half-life problems?
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May 7th, 2009 at 8:10 PM
What is the differnce between Positron emission and electron capture?
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May 7th, 2009 at 8:19 PM
How can you determine what the mass of the element is if one isn”t given un the problem?
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May 7th, 2009 at 8:53 PM
what is a half life?
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May 7th, 2009 at 11:47 PM
Whats the definition of Half Life?
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May 7th, 2009 at 11:49 PM
What are some types of nucleor decay?
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May 12th, 2009 at 5:57 PM
How do you work half life problems?
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