Periodic table articles – Page 3
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ExperimentAn alternative to using compressed gas cylinders
Getting gas under pressure allows exciting demonstrations such as igniting balloons filled with hydrogen gas. Includes kit list and safety instructions.
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ExperimentFlame tests (the wooden splint method)
Find a new method to perform flame tests using wooden splints soaked in chlorides. Includes kit list and safety instructions.
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IdeasMapping compound structure and bonding
How everyday compounds’ properties can be linked to their bonding and structure with a ‘structure triangle’
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NewsPurest 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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ExperimentThe preparation and properties of oxygen
Produce a potassium manganate(VII) reaction using a test tube, Bunsen burner, and scientific inquisition to detect the presence of oxygen. Includes kit list and safety instructions.
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FeatureModern-day alchemists
Sam Tracey visits Lawrence Berkeley National Laboratory to find out how to make a new element
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NewsGold nanoclusters offer route to better vaccines
New technique improves immune response and safety of hepatitis E vaccine
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ExperimentHeating 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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ExperimentHalogen 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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ExperimentReactivity 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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ExperimentFlame colours: a demonstration
Explore how different elements rect when exposed to a flame, and discuss how alkali metals, alkaline earth metals, and metal salts change the colour of fire.
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ExperimentMicroscale 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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SoundbiteHarry Kroto: a fond farewell
Nina Notman pays her respects to Harry Kroto, a co-discover of the buckyball
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OpinionThe education of Harry Kroto
Kristy Turner reflects on Sir Harry Kroto's relationship with education
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NewsPeriodic table gains four new elements
Teams in Japan, Russia and the US credited with discoveries
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SoundbiteHydrogen 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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ExperimentSolubility 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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ExperimentSolubility patterns of halogen anions
Try this microscale practical to identify and explain patterns in the solubility of fluoride, chloride, bromide and iodide anions. Includes kit list and safety instructions.