element
Published on Mar 31, 2016
No Description
MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
element
a substance in which all the atoms are the same that can't be broken down into other substances
Photo by NASA Goddard Photo and Video
Carbon 14 dating
method for determining the age of an object containing organic material by using the properties of radiocarbon
Photo by p.Gordon
Radioactive Dating
the breakdown of a radioactive element, releasing particles and energy.
Photo by kevin dooley
determining absolute ages
scientists determine the amount of radioactive element in a rock
Photo by Andreas-photography
Radioactive Decay
- atom releases energy and particles
- changes into a new kind of atom
- atom of one element breaks down to form atoms of another element.
- also known as nuclear decay or radioactivity
Photo by ®DS
potassium-argon dating
- Potassium argon (40K-40Ar) dating is a form of radiometric dating widely used because of the range of dates for which it is useful.
- The technique can be used for dates ranging from earth's beginning, 4550 mya (4.55bn in US terminology) to about 100,000 years ago. The half-life of potassium40 is roughly 1.25 billion years, so four half-lives are about five billion years, or older than the earth. Other radiometric techniques, like carbon14, are useful for much more recent dates.
Photo by Paul's Lab
Carbon -14 dating
- 1. Radioactive form of carbon
- 2. After organism dies, carbon-14 decays, and changes to stable nitrogen-1
- 3. Is useful in dating materials from plants/animal
Photo by xiaming
Radioactive Dating of Rock Layers
- 1.works well for igneous rock
- Radioactive dating provides the age of the particles
Photo by CraigMoulding
thankyou for tuning in
Photo by stevendepolo
