Sodium is an alkali metal. They're still warm.They are deceptively heavy. And it's more determined than almost any other element on the table.To get a first-hand look at oxygen's lust for electrons, I've traveled to the Energetic Materials Research and Testing Center at New Mexico Tech, where the business of violent reactions is booming.It's a deadly serious business for researchers who study improvised explosive devices, I.E.D.s.We're going to set off one of the most powerful off-the-shelf explosives there is.
It has three natural isotopes, or versions.
Tin is good for a bell, but only in the right proportion.This is what can happen if the amount of tin isn't right. Perfect job.Final steps: cool and clean the bars, stamp them with their unique serial numbers and their weights.So this is it, the proverbial gold bars. That's carbon-14.And that rare version of carbon has proven to be a crucial tool for unlocking the past.Several times a year, scientist Scott Stine travels to the shores of Mono Lake, near Yosemite National Park.Over the millennia, the water level has risen and fallen, as the area has cycled between wet periods and dry times.Since then, the remains of those trees have been well preserved by the arid climate.Unlike the other natural isotopes of carbon, carbon-14 is unstable. Sometimes I, sometimes I'll mix it up, get a little chalk.
Name: Victoria Melendez Date: 10/14/19 Period: 2 NOVA: Hunting the Elements Part 1: Basic Chemistry Gold- Au 1. In this explosive, oxygen, hydrogen and nitrogen are so close together they lose no time finding new partners and making new bonds that release energy.The final demonstration is one pound of C-4, a military-grade high explosive, which burns fast enough to cut steel.C-4 assembles oxygen, nitrogen, hydrogen and carbon in high concentration, close together, all on a big molecule, so the speed of reaction is blisteringly fast.And that gives me an idea: maybe C-4 can help me exorcise a personal demon. It's also a big part of us, which makes me wonder: what other elements make life possible?
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%PDF-1.5 But about one percent of carbon atoms have an extra neutron, giving them seven. GOLD - AU 1. PBS Airdate: April 4, 2012 ... Join me on my Hunt for the Elements, right now, on NOVA. Even with all the other modern materials available, they still choose bronze. It's a complete closed circuit, and the voltmeter's measuring that. Like Greta Garbo, it "vants" to be alone.So do other so-called "noble" metals: silver, platinum, palladium, osmium and iridium, all located in the same quiet neighborhood of the periodic table.Using cyanide to react with the gold allows them to gradually reduce 40,000-gallon tanks of pulverized sludge to this: three trays full of mud?The golden mud goes into a 2,000-degree induction furnace, along with a white powder called flux, chemicals that prevent the molten gold from reacting with or sticking to anything.This is the first time an outsider has been allowed to pour gold.I'm not sure they entirely know what they are doing, but they are going to let me pour the gold into a gold bar mold. %���� We'll be there soon.I'm dying to know what I've got my hands on: a pinch of praseodymium, perhaps? He hands me a case of super-strong magnets.So this is, this is full of actual regular, old refrigerator…oh yeah, more than, more than refrigerator magnets.Oh, my gosh. <>
And I wouldn't mind taking a look at these under your magic microscope.First, a polishing wheel gives the bronze a mirror-like finish. 1 once 4. �p(��$_۽']?�?m|�V��he-wyl�� �(r�*1���6nE�n�a�4�&bPl����N ��~nOr�]���٭����R���{�[LК�dhw��VsaBR^2"�QZ�==$�MBD�rT�)4��:λ�@�R#B����x�A|�{M��a��o�tZ�Ӓ����9X�=ԗxyHG1k��-���d(�� �������YM�hEl����)�X̊d�s8�Z�6�]mT�r�bm=M�@��" Scientists call that time its "half-life. As if sodium plus water weren't violent enough, now he wants to combine the same deadly sodium with another lethal element: chlorine, one of the halogens.The result, he claims, will be a tasty flavoring for a net full of popcorn.I mean, chlorine, chlorine—they used it as a poison gas in World War I.First, a hunk of sodium in a dry metal bowl,then a jet of pure chlorine: surprisingly, no explosion.Somehow, when these two bad boys of the periodic table come together, they calm down.At the atomic level, sodium, an alkali metal, had an electron it didn't want, and chlorine, a halogen, wants desperately to grab an electron.
As scientists continue to hunt the secrets of the elements, what new understanding and technologies will follow can only be imagined.HOST David Pogue WRITTEN, PRODUCED AND DIRECTED BY Chris Schmidt PRODUCED BY Dan McCabe EXECUTIVE PRODUCERSGENERAL MANAGER Bill Borson SVP, PROGRAMMING Seanbaker Carter SVP, Post & Operations Robert Kirwan Director of Programming Luke Gasbarro ONLINE EDITOR Jim Fetela COLORIST Julie Kahn AUDIO MIX Heart Punch Studio STOCK FOOTAGE NASA/JPL - CaltechA NOVA Production by Powderhouse Productions for WGBHThe views of the people interviewed in HUNTING FOR THE ELEMENTS are their own and are not those of the Chicago Mercantile Exchange or its affiliates, or the trading floor community as a whole.IMAGE: (David Pogue, periodic table) ©WGBH Educational FoundationMajor funding for "Hunting the Elements" is provided by the Alfred P. Sloan Foundation.Additional funding for "Hunting the Elements" is provided by the Department of Energy and by the Millicent and Eugene Bell Foundation.This material is based upon work supported by the U.S. Department of Energy under Award Number DE-SC0007358. Learn. Element Element Name Symbol Common Object Important Property 2. What, for example, is in me? I'd better get some of my own while the getting is good.So how can I find out which elements are in this hunk?Molycorp's facility is still under construction, so, to find out what's in my rocks, he suggests I take them to the world's premier rare earth research lab, in Ames, Iowa. Eight bars, $12 million, sitting on this unassuming little table.