Chemistry Periodicity in properties part 16 (Ionic radius Isoelectronic species) CBSE class 11 XI
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Chemistry Periodicity in properties part 15 (Atomic radius trend periodic table) CBSE class 11 XI
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Chemistry Periodicity in properties part 19 (Electron gain enthalpy) CBSE class 11 XI
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Chemistry Periodicity in properties part 18 (Ionization enthalpy trends) CBSE class 11 XI
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Chemistry Periodicity in properties part 20 (Example electron gain enthalpy) CBSE class 11 XI
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Brussels-Innova-2012=Eureka=PAK
POLSCY WYNALAZCY na BRUKSELSKICH MI #280;DZYNARODOWYCH TARGACH WYNALAZCÓW "THE WORLD EXHIBITION ON INVENTIONS, RESEARCH AND NEW TECHNOLOGIES" 15 - 17 listopada 2012 z udzia #322;em AGH University of Science and Technology, Air Force Institute of Technology, Association of Polish Inventors and Innovators, Automotive Industry, Institute PIMOT, Czestochowa University of Technology, Warta, Embassy of Poland, Eurobusiness - Haller, Gdansk University of Technology, Industrial Chemistry Research Institute, Industrial Institute of Agricultural Engineering, Institute of Ceramics and Building Materials, Institute of Non Ferrous Metals, Institute of Security Technologies, Moratex, Military University of Technology, Mossakowski Medical Research Centre, Polish Academy of Sciences, Polish Patent Office, Poznan University of Technology, Tele and Radio Research Institute, Textile Research Institute, University of Warmia Mazury, Wroclaw Medical University, Wroclaw Research Centre EIT, Wroclaw University of Technology, Young Inventors === Filmé avec une caméra de poche et monté gracieusement par PAKULSKI COMMUNICATON Publicité, Éditions, Relations Publiques, Événements Galerie de Waterloo 2 - B - 1050 Bruxelles etudes.production@pakulskicommunication.comFrom:André PakulskiViews:1 0ratingsTime:07:12More inScience Technology
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Squirrel Measure 1
A response to the 1951 film, Duck Cover. Students followed instructor #39;s initial themes to select materials and locations that they felt best fit their interests. This followed a unit on nuclear chemistry and a look at how the Manhattan Project and wartime uncertainties influenced current feelings about all things nuclear.From:Twanelle MajorsViews:2 0ratingsTime:04:36More inEducation
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Squirrel
Chemistry Periodicity in properties part 22 (Trends in periodic table summary) CBSE class 11 XI
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Chemistry Periodicity in properties part 21 (Electronegativity) CBSE class 11 XI
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Neon
This is a project for honors chemistry.From:mearaleeaifViews:0 0ratingsTime:01:36More inPeople Blogs
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Chemistry Periodicity in properties part 23 (Oxidation state in Periodic table) CBSE class 11 XI
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And the fifth day of Christmas is already upon us… well by the reckoning of Chemistry World‘s Christmas quiz anyway. If you want to check out yesterday’s quiz questions then you can find them here.
On with the quiz and today’s questions.
A Southampton University chemistry lab was shut after a PhD student had to be treated for poisoning. Which two elements were they poisoned with?
Multiple papers came out this year casting more and more doubt on the claim that the bacterium GFAJ-1 can take up arsenic and incorporate it into its DNA backbone. What does GFAJ-1 stand for?
On to the answers from yesterday’s quiz.
This year’s chemistry Nobel laureates were Robert Lefkowitz and Brian Kobilka for their work on G-coupled protein receptors. You can read all about their work on these important drug targets in our feature, A signal honour.
India was the country that claimed a domestic drug discovery first with Synriam made by pharmaceutical firm Ranbaxy. However, the active ingredient of Synriam was actually discovered in a drug screen by the Swiss charity Medicines for Malaria Venture. Read our story on the drug here.
That’s it for this week, but we’ll be back on Monday with more brain teasers.
Source:
http://prospect.rsc.org/blogs/cw/2012/12/07/chemistry-world-christmas-quiz-day-5/
Chemistry Periodicity in properties part 24 (Anomalous properties second period) CBSE class 11 XI
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The answer’s to these questions can be found here. Day 4 of the quiz can now be found here.
On the third day of Christmas… Well, you get the idea. It’s day 3 of the Chemistry World quiz.
Today’s first question is: Why was this (erroneous) structure of a chemical, isolated from fungi found on a dead log in Siberia, back in the news this year, after first causing controversy back in 2006?
What is this structure?
Who became president of the Royal Society of Chemistry in July?
And now the answers to yesterday’s quiz. The giant of organic synthesis who joined Rice University was none other than K C Nicolaou.
The nerve gas that researchers at the Los Alamos National Laboratory figured out how to destroy safely using computer simulations was VX. Nicholas Cage’s approach to dealing with VX in the film The Rock could be described as rather more hands on! Finally, for the bonus point, the chemical name of VX is (O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate). Very well done if you got that. You can read about the LANL scientists’ work here.
As always, don’t phone, it’s just for fun!
Source:
http://prospect.rsc.org/blogs/cw/2012/12/05/chemistry-world-quiz-day-3/
Its synthesis kickstarted organic chemistry and it’s widely used in industry. But did you know that urea is pretty much odourless?? Find out more in this week’s Chemistry in its element
Source:
http://prospect.rsc.org/blogs/cw/2012/12/05/chemistry-in-its-element-urea/
What is the genus of a calling bird anyway?
The answer’s to these questions and day 5 of the quiz can now be found here.
So, straight on to day 4 of the Chemistry World round up of the year quiz. If you want to catch up with yesterday’s questions you can see them here.
This year the Nobel prize in chemistry went to work on G-protein coupled receptors. Which two scientists were awarded the prize?
In April, the antimalarial drug Synriam was claimed to be the first domestically developed drug for which emerging economy?
And now the answers from yesterday.
The chemical structure was the purported configuration of hexacyclinol in a 2006 paper from James La Clair. The paper came in for considerable criticism from the synthetic organic community and was eventually retracted in November of this year.
New structure for hexacyclinol
And the new president of the Royal Society of Chemistry is, of course, Lesley Yellowlees.
Stay tuned for tomorrow’s questions.
Source:
http://prospect.rsc.org/blogs/cw/2012/12/06/chemistry-world-christmas-quiz-day-4/
The answers to day 1′s questions and the next day’s quiz questions can be found here.
‘Tis the season to be jolly. This also means that it’s time to look back on what’s happened over the past year and take stock. So, here at the Chemistry World Christmas fortress, we’ve put together a quiz looking back at some of the year’s best research in the chemical sciences, events that shook the chemistry community and a few Christmas themed posers thrown in for good measure! We’ll be posting a couple of questions every day on our blog. Check back the next day for the answers and the next set of questions. The comments section, as always, is open for your responses, but we won’t publish any that contain the answers to the questions posed until the next day.
First up, cast your mind back to the summer. Below is an atomic force microscopy image of a molecule synthesised by Anish Mistry and David Fox at Warwick University to celebrate the London 2012 Olympic games. What is its name?
Name that molecule!
In June, which US inorganic chemist retracted a series of papers in JACS and Science, because his previous findings that broke the ‘oxo wall’ were incorrect?
Hopefully these questions are exercising the old grey matter. Come back tomorrow for the answers and the next set of questions.
Source:
http://prospect.rsc.org/blogs/cw/2012/12/03/chemistry-world-christmas-quiz-day-1/
The other turtle dove must have flown
The answers to today’s quiz can be found here. Day 3′s quiz can be found here.
And on the second day of the Christmas quiz my true love brought to me… the answers to yesterday’s posers (see below).
But first, it’s time for today’s questions: Which giant of total synthesis announced in September that he would be joining Rice University next year?
Richard Gee and his team at the Lawrence Livermore National Laboratory, California, US, used molecular dynamics simulations to work out a way to decontaminate a deadly nerve gas, made famous by the Nicolas Cage film The Rock. What was the nerve agent ? Give yourself a bonus point if you know the chemical name of the compound!
And now the answers to yesterday’s brainteasers:
The molecule that resembles the Olympic rings was, of course, dubbed Olympicene. You can read our story about it here and read about the synthesis at Chemspider.
Craig Hill, an inorganic chemist at Emory University, was the researcher who asked for several of his papers to be retracted because he hadn’t actually broken the ‘oxo wall’ (the wall is a metaphor for the impossibility of forming terminal oxo bonds in elements in group 9 and beyond) as he first thought. You can read about the controversy here.
We’ll be back tomorrow with more questions.
Source:
http://prospect.rsc.org/blogs/cw/2012/12/04/chemistry-world-quiz-day-2/
It’s the kitchen acid everyone knows and loves. Find out about the hundreds of uses of vinegar – and the chemistry behind them - in this week’s Chemistry in its element
Source:
http://prospect.rsc.org/blogs/cw/2012/11/21/chemistry-in-its-element-vinegar/
The beer drank by ancient Nubians contained an antibiotic, which kept them healthy. Find out about the discovery of tetracyclines - antibiotics isolated from soil fungus - in this week’s Chemistry in its element
Source:
http://prospect.rsc.org/blogs/cw/2012/11/28/chemistry-in-its-element-tetracycline/