- published: 26 Nov 2014
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A chemical element or element is a species of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, Z). There are 118 elements that have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements. There are 80 elements that have at least one stable isotope and 38 that have exclusively radioactive isotopes, which decay over time into other elements. Iron is the most abundant element (by mass) making up the Earth, while oxygen is the most common element in the crust of the earth.
Chemical elements constitute all of the ordinary matter of the universe. However astronomical observations suggest that ordinary observable matter is only approximately 15% of the matter in the universe: the remainder is dark matter, the composition of which is unknown, but it is not composed of chemical elements. The two lightest elements, hydrogen and helium were mostly formed in the Big Bang and are the most common elements in the universe. The next three elements (lithium, beryllium and boron) were formed mostly by cosmic ray spallation, and are thus more rare than those that follow. Formation of elements with from six to twenty six protons occurred and continues to occur in main sequence stars via stellar nucleosynthesis. The high abundance of oxygen, silicon, and iron on Earth reflects their common production in such stars. Elements with greater than twenty-six protons are formed by supernova nucleosynthesis in supernovae, which, when they explode, blast these elements far into space as planetary nebulae, where they may become incorporated into planets when they are formed.
Mr. Beaker will show you how elements are organized on the Periodic Table. Learn about chemical elements, the Periodic Table of elements, properties of solids, liquids, and gases, such as sugar, water, helium, and oxygen. This lesson includes practical exercises. Recommended for grade 4. Kids Educ SUBSCRIBE TO US http://www.youtube.com/user/KidsEduc?sub_confirmation=1 To see the more kids movies go to http://www.youtube.com/user/KidsEduc
Series in which Jim Al-Khalili traces the story of how the elements, the building blocks that make up our entire world, were discovered and mapped
Hank gives us a tour of the most important table ever, including the life story of the obsessive man who championed it, Dmitri Mendeleev. The periodic table of elements is a concise, information-dense catalog of all of the different sorts of atoms in the universe, and it has a wealth of information to tell us if we can learn to read it. Like Crash Course? http://www.facebook.com/YouTubeCrashCourse Follow Crash Course! http://www.twitter.com/TheCrashCourse Tumbl Crash Course: http://thecrashcourse.tumblr.com Table of Contents Dmitri Mendeleev - 0:45 Mendeleev's Organization of the Periodic Table - 2:31 Relationships in the Periodic Table - 5:03 Why Mendeleev Stood Out from his Colleagues - 7:09 How the Periodic Table Could be Improved - 8:28 More info. about the cylindrical periodic tab...
Download on ITUNES: http://bit.ly/12AeW99 Hey friends - we wanted to update a few things in our video to be more accurate and appropriate for everyone. And why not try and memorize this song all over again?! Thanks for all your support through the years, and we hope to make more songs like this soon. Sincerely, Mitch and Greg of AsapSCIENCE DOWNLOAD ON BANDCAMP: http://bit.ly/111Kssd (instrumental available) Get the AsapSCIENCE Book! http://asapscience.com/book FOLLOW US! Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Clickable: http://bit.ly/16F1jeC and http://bit.ly/15J7ube AsapINSTAGRAM: https://instagram.com/asapscience/ Facebook: http://facebook.com/AsapSCIENCE Twitter: http://twitter.com/AsapSCIENCE Tumblr: http://asapscience.tumblr.com Vine: Search "AsapSCIENCE" o...
Top 10 Strangest Elements - Currently there are 118 elements that we have discovered and logged on the Periodic table. Here's the weirdest elements from the periodic table, that seem to defy the laws of physics. SUBSCRIBE - New Videos Every Monday & Thursday https://www.youtube.com/user/Thoughty2 Support me on Patreon: http://thoughty2.com/patreon FACEBOOK: http://thoughty2.com/facebook TWITTER: http://thoughty2.com/twitter THOUGHTY2 MERCHANDISE: http://thoughty2.spreadshirt.com With Special Thanks To: Morgan, Liam Evans, Misha A-Wilson
Lead: Most Dangerous Chemical Elements (full documentary) - DOCFILMS Lead is a chemical element in the carbon team with symbol Pb as well as atomic number 82. Lead is a soft, flexible and also heavy post-transition metal. Metallic lead has a bluish-white shade after being fresh reduced, yet it quickly tarnishes to a dull grayish color when subjected to air. Lead has a glossy chrome-silver appeal when it is merged a fluid. It is also the heaviest non-radioactive element (some radioactive elements, like technetium, are lighter). Lead is used in building construction, lead-acid batteries, bullets and also shot, weights, as part of solders, pewters, fusible alloys, and as a radiation cover. Lead has the highest atomic number of all of the stable elements, although the next higher element, bi...
There are 118 known chemical elements in the periodic table. They are all presented here, arranged by increasing atomic number (Z), along with its symbol, name, pronunciation and classification information. There are 118 elements that have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements. There are 80 elements that have at least one stable isotope and 38 that have exclusively radioactive isotopes, which decay over time into other elements. Iron is the most abundant element (by mass) making up the Earth, while oxygen is the most common element in the crust of the earth. __________ Have you found this video helpful? Any comment or suggestion is welcome! Based on the wikipedia article "Chemical element": https://en.wikipedia.org/...
Yep, Tom Lehrer's fun lil ditty about that big poster you've probably all seen in your local chemistry room. If you can memorize this and sing it to your chemistry teacher, I'm sure they'll most likely give you extra credit. :P This is my movie for my computer class this year, so all that text at the end... that was to fill time and make it the required 3 minutes. o__x Basically all it's saying is this: 15 elements discovered since Tom wrote it, 10 of which have been named. -insert names of those above mentioned 10 elements here. If you want to know them so badly, watch it or look it up on Wikipedia.- Then credits to Tom for making the song and Wikipedia for the extra info about it and those extra elements. And a small disclaimer at the end saying I drew all the pictures in MSPaint. Reall...
Welcome to HaggardHawks on YouTube! Every week throughout 2016, we’re posting a new video to this channel looking at 10 different words, as part of our 500 Words series. This week the four new chemical elements discovered earlier this year had their names finally proposed, and so to celebrate their addition to the periodic table we’re looking at the meanings and origins of 10 chemical element names. MORE ON URANUS: http://haggardhawksblog.blogspot.co.uk/2016/02/uranus.html WORD DROPS: A collections of 1000 fascinating HaggardHawks words and facts, available now! http://www.amazon.co.uk/Word-Drops-Pa... ...AND IN THE USA: http://www.amazon.com/Word-Drops-Spri... FOLLOW HAGGARD HAWKS: Twitter: https://twitter.com/haggardhawks Facebook: https://www.facebook.com/haggardhawks Blog: htt...
Evan Le not only knows the elements but he knows world map by heart, capital, shapes of the countries and the flags.
In this video, I recap the definition of an isoparametric element and continue with definition of isoparametric characteristics of rectangular elements in particular.
I remember the days of playing Rainbow Six (1999) on my gaming PC that had a 700Mhz processor. Back then I was more into flight simulators. I dabbled in Half-Life but never go far. I was better at Rainbow Six and played online. Well, maybe I should have completed Half-Life because apparently it was a good game. This game, Transmission Element 120 is a spin off? Or an extension? Or a mod? I'm not really sure. I was told I "HAD TO PLAY IT!" but, I'm not a fan of horror games. I'm a wuss. Unbinilium, is also known as eka-radium or simply element 120 which is the hypothetical chemical element in the periodic table with atomic number 120 and symbol Ubn. Boom. Dropping some knowledge on your ass!
3 songs that are in the new CD release. "Do You Remember", "Saturday Night" and "It's A Crime" (which is a really good song). At Club Fox, Redwood City. Oct 15, 2016. Shannon Craig, sound engineer.
Elements Process Knowledge is a free business analysis application that has been designed to support Salesforce implementations and give benefits at every phase of the lifecycle. Dump Visio, Powerpoint or Lucidchart and step up to Elements
This was another video that I made for school! if you guys like these videos then let me know by commenting down below, liking the video, and subscribing! Music: Kevin MacLeod: Amazing plan https://www.youtube.com/watch?v=Tq4rut6pcfo Kevin MacLeod: Spazzmatica Polka https://www.youtube.com/watch?v=7J6fQ0Uo_rk -LB
Nova - Hunting the Elements (PBS Documentary) Nova - Hunting the Elements Nova (PBS Documentary) Where do nature’s building blocks, called the elements, come from? They’re the hidden ingredients of everything in our world, from the carbon in our bodies to the metals in our smartphones. To unlock their secrets, David Pogue, technology columnist and lively host of NOVA’s popular "Making Stuff" series, spins viewers through the world of weird, extreme chemistry: the strongest acids, the deadliest poisons, the universe’s most abundant elements, and the rarest of the rare—substances cooked up in atom smashers that flicker into existence for only fractions of a second.
เพลงบรรเลง ซอจีน เพราะมาก เพลงแรกจากเพลงประกอบภาพยนต์เรื่อง จอมใจบ้านมีดบิน
Series in which Jim Al-Khalili traces the story of how the elements, the building blocks that make up our entire world, were discovered and mapped
One of The Most Abundant Element: ALUMINIUM - DOCFILMS Aluminium (or light weight aluminum; see spelling differences) is a chemical aspect in the boron team with icon Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile steel. Aluminium lightweight is the 3rd most bountiful aspect (after oxygen as well as silicon), and the most bountiful metal in the Earth's crust. It makes up about 8 % by weight of the crust, though it is less common in the mantle listed below. Aluminium steel is so chemically responsive that indigenous samplings are rare and minimal to extreme minimizing environments. Instead, it is discovered combined in over 270 different minerals. The chief ore of aluminium lightweight is bauxite. Aluminium is remarkable for the steel's reduced density and also...
Series in which Jim Al-Khalili traces the story of how the elements, the building blocks that make up our entire world, were discovered and mapped