Periodic table articles – Page 2
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News
Hundreds of helium compounds could be hiding in Earth’s mantle
Use this cutting edge research into helium compounds in class
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Ideas
Mapping compound structure and bonding
How everyday compounds’ properties can be linked to their bonding and structure with a ‘structure triangle’
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News
Purest silicon sphere ever created will redefine the kilogram
Largest impurity is copper taking the place of one silicon atom in every three billion
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Feature
Modern-day alchemists
Sam Tracey visits Lawrence Berkeley National Laboratory to find out how to make a new element
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News
Gold nanoclusters offer route to better vaccines
New technique improves immune response and safety of hepatitis E vaccine
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Experiment
Heating Group 1 metals in air and in chlorine
Use this demonstration to illustrate the reactions of lithium, sodium and potassium in air and in chlorine. Includes kit list, video and safety instructions.
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Experiment
Halogen reactions with iron wool
Illustrate an exothermic redox reaction by heating iron wool with chlorine, bromine and iodine with this demonstration. Includes kit list and safety instructions.
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Experiment
Reactivity trends of the alkali metals
Use this experiment to demonstrate the trend in reactivity down group 1 of the Periodic Table, exploring the physical and chemical properties of the alkali metals.
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Experiment
Flame colours: a demonstration
Show the flame colours of alkali metals, alkaline earth metals, and other metal salts by safely spraying sodium chloride, potassium chloride, lithium chloride, copper sulfate and ethanol through a bunsen flame.
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Experiment
Microscale extraction of copper
Try this practical to reduce copper(II) oxide to copper using hydrogen, revealing their positions in the reactivity series. Includes kit list and safety instructions.
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Soundbite
Harry Kroto: a fond farewell
Nina Notman pays her respects to Harry Kroto, a co-discover of the buckyball
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Opinion
The education of Harry Kroto
Kristy Turner reflects on Sir Harry Kroto's relationship with education
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News
Periodic table gains four new elements
Teams in Japan, Russia and the US credited with discoveries
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Soundbite
Hydrogen falls apart under pressure
Nina Notman learns that the simplest element in the universe is actually quite complex when put under pressure
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Experiment
Solubility trends of metal halides
Investigate patterns in the solubility of halides of silver and some Group 1 and 2 metals in this microscale practical. Includes kit list and safety instructions.
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