Europium is a chemical element with the symbol Eu and atomic number 63. Europium is the most reactive lanthanide by far, having to be stored under an inert fluid to protect it from atmospheric oxygen or moisture. Europium is also the softest lanthanide, as it can be dented with a fingernail and easily cut with a knife. When oxidation is removed a shiny-white metal is visible. Europium was isolated in 1901 and is named after the continent of Europe. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common. All europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic as compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds. Europium is one of the rarest of the rare-earth elements on Earth. (Wikipedia).
This is How the Colosseum Looked in Roman Times
The Colosseum is one of the most influential buildings of Ancient Rome, here's how it looked and how it was constructed. Like and subscribe to see more videos like this. Subtitles available in several languages. Ve el vídeo en español: https://youtu.be/KR2QDawogf0 Say hi on social: Patr
From playlist Vídeos
The Coolest Stuff on the Planet- Rome's Colossally Cool Colosseum
Although the Colosseum of Rome is in ruins, it remains an impressive testament to the might of the Roman Empire. In this episode, Rachel and Matt delve into the fascinating story of one of the ancient world's most impressive structures.
From playlist The Coolest Stuff on the Planet
London to Paris by Eurostar train
A guide to the Eurostar train from London to Paris. A journey from London St Pancras by Eurostar e320 across Kent, through the Channel Tunnel & across France to Paris Gare du Nord. It shows standard class, cafe-bar, standard premier & food. For more info see https://www.seat61.com/train
From playlist Train Travel In Europe
Brussels 4K - Driving Downtown - Europe's Washington DC
Evening drive around Brussels Belgium, Europe's capital city. Europe's version of Washington DC, where the European Union is officially located, a political and economic union of 27 member states that are located primarily in Europe. Driving from modern skyscrapers of Belgium through the
From playlist Global Cities Index: Alpha City
Ancient Rome 101 | National Geographic
Spanning over a thousand years, ancient Rome was a civilization of constant evolution. This great empire flourished through innovation and incorporation of the diverse cultures they conquered, such as the adoption of Latin and gladiatorial combat. Learn about the rise and fall of this anci
From playlist News | National Geographic
Vienna 4K - Austria Capital - Driving Downtown
Weekday afternoon drive around the center of Vienna Austria on my recent visit. A global European city similar to London and Paris. Don't leave Vienna off your list when traveling through Europe! Starting Point: https://goo.gl/maps/vonVyfpHpx5C6p6S6 . Vienna, Austria’s capital, lies i
From playlist Location by Continent - Europe - J Utah
Since we just learn the pronoun ne, let's learn another one: ci. This has a lot of uses, as ci locativo, ci argomentale, and more. Let's learn how to use it! Script by Patrizia Farina, Professor of Italian at Western Connecticut State University and Purchase College. Watch the whole Ital
From playlist Italian
Ancient Greece 101 | National Geographic
From artistry to politics, ancient Greece left a considerable impression on world history. Learn why Greek and Roman gods share so many similarities, how the alphabet got its name, and how the legacy of ancient Greece has evolved over thousands of years. ➡ Subscribe: http://bit.ly/NatGeoS
From playlist News | National Geographic
Europium - Periodic Table of Videos
Europium is element number 63. 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/perio
From playlist All Chemical Elements in Order - Periodic Videos
In this video we make triboluminescent or smash-glow crystals. Triboluminescence is the phenomena where light is generated when something is rubbed or fractured. The exact mechanism by which triboluminescence works is still under investigation, but the best theories so far propose that
From playlist Glow Science
Holiday, Holidays, Vacation, Leave, Day off - The difference.
What's the difference between Holiday and Vacation? And what do "holidays", "leave" and "day off". Explained here with examples of British and American usage. This is an English lesson brought to you By LetThemTalkTV #coursdanglais #paris ALL PHOTOS IN THE PUBLIC DOMAIN except "tired" b
From playlist Perfect British - Pronunciation , idioms, vocabulary
Blackest Paint (Musou Black) + Brightest Paint (LIT) = The Blackest Light
In this video I mix together Musou black paint and LIT pigment to create a black pitch black paint that actually glows! It is amazing to see! Then I paint my room with it and watch it glow! Get Your Experiment Box Here: https://theactionlab.com/ Checkout my experiment book: https://amzn.t
From playlist The Action Lab Does Quantum Mechanics
Ions of uranium, europium, neodymium, terbium and lots of other stuff can fluoresce. In this video I show a lot of them and also try to explain in simple terms how it works. Full music credit: Kevin MacLeod www.incompetech.com All under CC license. Tracks used: 0:30 - 0:50 3:03 - 3:43 4:5
From playlist Fluorescence and phosphorescence
How To Make Glow in the Dark Powder
How to make phosphorescent glow in the dark powder. Also known as luminescent, photoluminescent or simply glow powder. Warning: This experiment uses mildly toxic chemicals, wear gloves when handling them. In addition, the combustion reaction must be performed outside or in a fume-hood
From playlist Glow Science
From playlist REU Presentation 2022
5: Glowing Plectrum (12 Days of Christmas)
A glow-in-the-dark guitar plectrum. Fifth of 12 parts, each featuring chemistry gifts received by Sir Martyn during the year. All the videos in this series appear here as they're released: http://bit.ly/12_Days_Xmas Drumming: https://www.youtube.com/watch?v=GyLeBMdI_HU Objectivity: http:/
From playlist 12 Days of Christmas - Periodic Videos
Earth Habitability Linked to Uranium/Thorium Inside the Planet
You can buy Universe Sandbox 2 here: http://amzn.to/2yJqwU6 Or get a shirt: https://teespring.com/stores/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a recent study that analyzed the amount of thorium and uranium inside planet Earth in trying to fi
From playlist Amazing Planet Earth
INEXPLICABLE FIND Inside the Mesa | The Secret of Skinwalker Ranch (Season 3)
The team conducts an experiment to find out what’s beneath the mesa, in this clip from Season 3, "Dome of the Rock." #TheSecretofSkinwalkerRanch Subscribe for more from The Secret of Skinwalker Ranch and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Watch mor
From playlist The Secret of Skinwalker Ranch | Official Series Playlist | History
Chem 203. Lecture 28: Some Other Useful NMR Techniques, Part 1
Full Chem 203 Playlist: https://www.youtube.com/playlist?list=PLqOZ6FD_RQ7nUiPCa47zSrMWArKAdwfcD UCI Chem 203 Organic Spectroscopy (Fall 2020) Lecture 28: Some Other Useful NMR Techniques, Part 1 Instructor: James S. Nowick, Ph.D. License: Creative Commons BY-NC-SA Terms of Use: http://op
From playlist Chemistry 203, Organic Spectroscopy (2020)
What is the definition of scientific notation
👉 Learn about scientific notations. Scientific notation is a convenient way of writing very large or very small numbers. A number written in scientific notation is of the form a * 10^n where a is the first non-zero number between 1 and 10, (1 included) and n is the number of digits up to t
From playlist Scientific Notation | Learn About