Californium is a radioactive chemical element with the symbol Cf and atomic number 98. The element was first synthesized in 1950 at Lawrence Berkeley National Laboratory (then the University of California Radiation Laboratory), by bombarding curium with alpha particles (helium-4 ions). It is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all elements that have been produced in amounts large enough to see with the naked eye (after einsteinium). The element was named after the university and the U.S. state of California. Two crystalline forms exist for californium at normal pressure: one above and one below 900 °C (1,650 °F). A third form exists at high pressure. Californium slowly tarnishes in air at room temperature. Californium compounds are dominated by the +3 oxidation state. The most stable of californium's twenty known isotopes is californium-251, with a half-life of 898 years. This short half-life means the element is not found in significant quantities in the Earth's crust. 252Cf, with a half-life of about 2.645 years, is the most common isotope used and is produced at Oak Ridge National Laboratory in the United States and Research Institute of Atomic Reactors in Russia. Californium is one of the few transuranium elements with practical applications. Most of these applications exploit the property of certain isotopes of californium to emit neutrons. For example, californium can be used to help start up nuclear reactors, and it is employed as a source of neutrons when studying materials using neutron diffraction and neutron spectroscopy. Californium can also be used in nuclear synthesis of higher mass elements; oganesson (element 118) was synthesized by bombarding californium-249 atoms with calcium-48 ions. Users of californium must take into account radiological concerns and the element's ability to disrupt the formation of red blood cells by bioaccumulating in skeletal tissue. (Wikipedia).
Caesium or Cesium (version 1) - Periodic Table of Videos
Newest version of our caesium video at http://www.youtube.com/watch?v=5aD6HwUE2c0 More links in description below ↓↓↓ Highly reactive and with a very low melting point, caesium is also a very beautiful element. Support Periodic Videos on Patreon: https://www.patreon.com/periodicvideos
From playlist The Caesium Collection - Periodic Videos
Californium (new) - Periodic Table of Videos
An extensive video about Californium, which reportedly costs up to $27m per gram. We go to where it's made in Oak Ridge, Tennessee. More links and info in full description ↓↓↓ This video features Professor Martyn Poliakoff at the University of Nottingham. And Julie Ezold and Rose Boll at
From playlist All Chemical Elements in Order - Periodic Videos
Underwater Caesium - Periodic Table of Videos
Caesium (or Cesium) underwater. See our previous sodium video: https://youtu.be/IaP3lGfa2n0 And potassium: https://youtu.be/XaalbE1Eh5s Alkali Metal playlist: http://bit.ly/Alkali_Metals Choose your element - Periodic Videos on Patreon: https://www.patreon.com/periodicvideos More chemist
From playlist Alkali Metals - Periodic Videos
A living creature comes out of gallium ... an alien lifeform. This video shows how to fight back when these start coming from the future. Even crazier video "Mercury - an alien metal" https://youtu.be/Bq1awUmqZcM Follow us here https://www.instagram.com/superaccu/ Ionic liquids https://yo
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Selenium - Periodic Table of Videos
Selenium is element number 34. More links in description below ↓↓↓ Support Periodic Videos on Patreon: https://www.patreon.com/periodicvideos A video on every element: http://bit.ly/118elements More at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/peri
From playlist All Chemical Elements in Order - Periodic Videos
Element 120 - Periodic Table of Videos
Attempts to create element 120 raise the issue of the so-called "island of stability". Professor Martyn Poliakoff discusses. Details to see The Prof in Sydney at http://periodicvideos.blogspot.com/2011/09/see-prof-in-sydney.html More at http://www.periodicvideos.com/
From playlist Superheavy Elements - Periodic Videos
Incredibly rare and radioactive elements ☢
Plutonium, Uranium, Holmium, Neptunium, Curium and many more. We're at the Oak Ridge National Laboratory, in Tennessee. More links and info in full description ↓↓↓ ORNL: https://www.ornl.gov Our thanks to Rose Boll and the team. Our videos on all 118 elements: http://bit.ly/118elements
From playlist Trip to Oak Ridge - Periodic Videos
We're at the High Flux Isotope Reactor at Oak Ridge National Laboratory. Go to https://wix.com/go/PeriodicVideos to create your free Wix website. Check out our new website at https://periodicvideos.net More links and info in full description ↓↓↓ Thanks to everyone at HFIR at Oak Ridge - h
From playlist Trip to Oak Ridge - Periodic Videos
Lithium (version 1) - Periodic Table of Videos
Higher quality version of this video now at http://www.youtube.com/watch?v=wY0afMI4Jgc More links in description below ↓↓↓ Lithium is an alkali metal and the third element on the periodic table. Support Periodic Videos on Patreon: https://www.patreon.com/periodicvideos A video on every
From playlist Alkali Metals - Periodic Videos
Palladium - Periodic Table of Videos
BETTER AND UPDATED PALLADIUM VIDEO AT: http://youtu.be/4ALTGeqmNFM Palladium is element number 46. More links in description below ↓↓↓ Support Periodic Videos on Patreon: https://www.patreon.com/periodicvideos A video on every element: http://bit.ly/118elements More at http://www.period
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Caesium or Cesium - Periodic Table of Videos
Here it is - five grams of caesium in water... But did you know caesium (aka cesium) is also used to define the length of a second? More links in description below ↓↓↓ For extra footage and replays of the reaction visit http://www.youtube.com/watch?v=pWXQ2tYzJaU Support Periodic Videos o
From playlist The Caesium Collection - Periodic Videos
HSC Chemistry. Production of Materials - Transuranic Elements.
From playlist HSC Chemistry - Production of Materials
Caesium in Water (multiple cameras)
Multiple camera angles and speeds. From recording the caesium video for periodicvideos See the main caesium video at http://www.youtube.com/watch?v=5aD6HwUE2c0
From playlist The Caesium Collection - Periodic Videos
8 Elements You Might Not Know That Are Extremely Useful
There are 118 elements on the periodic table, but it seems like only a handful of them get any attention. But just because you haven't heard of an element doesn't mean that it isn't a vital part of everyday life! Learn about these lesser known yet important elements in a new episode of Sci
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Future Elements - Periodic Table of Videos
Professor Poliakoff discusses the paths to elements 119 and 120. More links and info in full description ↓↓↓ Filmed on the banks of the Volga, in Dubna. Tour the Dubna machine which created six new elements: https://youtu.be/1VaY9N7Alq0 Calcium-48: https://youtu.be/CodBk7xewRk Superheav
From playlist Trip to Dubna, Russia - Periodic Videos
$500,000 of Calcium - Periodic Table of Videos
The rare isotope Calcium-48 plays a key role in the creation of superheavy elements. But it's not easy to obtain. Filmed at the Joint Institute for Nuclear Research, in Dubna, Russia. Featuring Professor Sir Martyn Poliakoff. See our elements inauguration video from Russia: https://youtu
From playlist Superheavy Elements - Periodic Videos
MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016 Instructor: Michael Short View the complete course: https://ocw.mit.edu/22-01F16 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61FVzAxBP09w2FMQgknTOqu The full, seven-dimensional neutron t
From playlist MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016
5. Mass Parabolas Continued, Stability, and Half Life
MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016 Instructor: Michael Short View the complete course: https://ocw.mit.edu/22-01F16 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61FVzAxBP09w2FMQgknTOqu We continue constructing example mass
From playlist MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016
Why Salvia is One of the Strongest Psychedelics on Earth
Salvia, or Salvia Divinorum, is one of the most potent hallucinogenic plants on Earth. It's so powerful it can make you feel like an inanimate object, have an out of body experience, or think your feet are on fire. In fact this plant is so powerful and unique the DEA isn't sure how to reg
From playlist Biology