Nature Chemistry | The Sceptical Chymist

Neon behind the signs

A few different versions of the periodic table do exist — as Michelle Francl wrote about here a while ago in a certain chemistry journal  — but we’re all attached to the one that adorned our science class rooms at school: Mendeleev’s version. We generally think that each position is firmly set, but in this issue’s ‘in your element’ article (subscription required) Felice Grandinetti ponders on whether neon should really be at the top of the noble gases group — this would involve helium moving next to hydrogen, at the top of group 2. 


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