Noble Gases (Ar, Ne, Kr, Xe)

In the final programme in our Elements series, Justin Rowlatt looks at the rarest and oddest members of the periodic table. Selenium, bismuth, molybdenum, antimony, rhenium, hafnium, zirconium, tellurium, thallium, barium. What are they? And what are they used for?Minor metals me ...  Show more

Why do we value this practically useless metal so highly? And does it bring out the worst in human nature? In a second look at this most coveted of metals, Justin Rowlatt hears both sides of the age-old argument. Swiss investor and gold enthusiast Marc Faber explains why he keeps ...  Show more

Andrea Sella, Professor of Inorganic Chemistry at University College London, celebrates the art and science of the chemical elements. Today he looks at helium. Helium is a finite resource here on Earth and many branches of science need it. Doctors need it to run MRI machines to d ...  Show more

Richard looks at noble gases &amp; halogens for your GCSE Chemistry exam. In this episode, he will look at what properties and trends of noble gases and halogens. Suitable for AQA, OCR, Edexcel, CIE and WJEC exam boards. Ideal for preparing your <a href="http://bit.ly/2to1 ...

Melvyn Bragg and guests discuss the chemical elements. The aim and challenge in chemistry, according to the Encyclopaedia Britannica, is the understanding of the complex materials which constitute everything in existence since the Big Bang, when the whole universe emerged out of ...  Show more

This week our hosts are joined by guests Samuel and Becky to talk all things Nitrogen. We hear about how nitrogen seems to turn up everywhere - from pharmaceuticals, to explosives, to DNA!