Like all noble gases, xenon is colourless ... But Ramsey established their position between halogens and alkali metals, and was awarded the Nobel Prize in Chemistry in 1904 for these elemental ...

In discussing halogen reactivity (as covered in Core Idea), it is a common practice to argue that as you go down the Group 17 elements it becomes harder for the elements to gain an electron to form a ...

Group 1 - the alkali metals - Edexcel Group 0 - the noble gases - Edexcel Sample exam questions - groups in the periodic table - Edexcel ...

Group 1 - the alkali metals - Edexcel Group 7 - the halogens - Edexcel Sample exam questions - groups in the periodic table - Edexcel ...