All Elements and the periodic table articles – Page 5
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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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ResourceOn This Day - Nov 15 : Chlorine declared element
It was previously thought that chlorine was a compound rather than an element, named oxymuriatic acid, until the British chemist and inventor presented his discovery to the Royal Society.
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ResourceDetecting copper in black solids
Devise experiments to identify a black solid sample by using chemicals and apparatus in the laboratory.
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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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ResourceBuild an atom simulation
Build an atom from scratch, using protons, neutrons, and electrons. Test different combinations to produce ions and unstable elements. Video: How to use the PhET build an atom simulation
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OpinionThe education of Harry Kroto
Kristy Turner reflects on Sir Harry Kroto's relationship with education
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ResourceTeachers TV: chemistry exciting elements
This Teachers TV video demonstrates exciting experiments around the topic of elements, such as reacting bromine with hydrogen and the displacement of halogens.
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ResourceTeachers TV: KS3/4 science - Periodic Table
This Teachers TV video looks at different elements in the Periodic Table and some properties they exhibit. The video also explains and demonstrates trends across the Periodic Table.
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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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ResourceThe isolation of the platinum group metals │16–18 years
A comprehension exercise on the solvent extraction of platinum, supported by a demonstration of the partition of iodine between two solvents
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ResourceAspects of the platinum group metals │16–18 years
A teaching and comprehension exercise based on the principles by which the platinum group metals are extracted and separated