


Getting towards the end of this particular series of infographics now – whilst this graphic completes the overview of specific groups, there…

This graphic looks at the halogens, found in Group 7 of the Periodic Table. This group consists of the elements fluorine, chlorine, bromine, iodine and astatine – the as yet unnamed artificial element 117, ununpentium, may also be a halogen. As always, the following are a few interesting nuggets of information too long to fit into the graphic itself.

This latest graphic looks at the elements of Group 6. Unlike with Groups 3, 4 where ‘Crystallogens’ and ‘Icosagens’ are alternative names…

The latest of the element infographics looks at the Group 5 elements. They are referred to more commonly as the Nitrogen Group…


The colours in fireworks stem from a wide variety of metal compounds – particularly metal salts. ‘Salt’ as a word conjures up images of the normal table salt you probably use every day; whilst this is one type of salt (sodium chloride), in chemistry ‘salt’ refers to any compound that contains metal and non-metal atoms ionically bonded together. So, how do these compounds give the huge range of colours, and what else is needed to produce fireworks?