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Radioactive Elements
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Published on Nov 20, 2015
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1.
Radioactive Elements
Aria Odendaal and Robbie Venerus
Photo by
LimeTech
2.
Radioactive Decay
When atomic nuclei of radioactive isotopes release particles.
A chemical element having an unstable nucleus
Photo by
Leo Reynolds
3.
Nuclear Reactions
A process in which two nuclear particles collide.
Can involve more than two particles
Photo by
NASA's Marshall Space Flight Center
4.
Marie Curie
She opened up the science of radioactivity
She won two Nobel prizes
Aplastic Anemia - from exposure to radioactive material.
Photo by
Tekniska museet
5.
Alpha Decay
A type of radioctive decay
When an alpha particle, 2 protons + 2 neutrons, is released by an atom.
Photo by
TonZ
6.
Beta Decay
A neutron in an unstable nucleus changes into a negatively charged beta particle and proton.
Photo by
** RCB **
7.
Gamma Radiation
Another type of radioactive decay.
Gamma rays (gamma radiation) consist of high energy waves and have no charge.
Photo by
jurvetson
8.
Effects of Nuclear Radiation
Alpha: Bad burn to human skin
Beta: can pass through human skin and damage cells.
Gamma: cause severe damage
Photo by
ssoosay
9.
Radioactive Dating
Dating: estimating when radioactive decay will occur
Half-life: The time it takes for half of the atom to disinegrate
Photo by
Matt. Create.
10.
Uses in Medicine
To treat cancer and try to kill the cancer cells
Used to diagnose different diseases or conditions one might have. ex: MRI
Photo by
Robert S. Donovan
11.
Nuclear Energy
Energy that can be released after nuclear fusion or fission.
Especially when used for electricity.
Photo by
rodrigomezs
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