I've taken the liberty of reproducing a CHMED-L post from Eric Scerri about hydrogen's position in the periodic table.

The position of hydrogen in the periodic system is a much debated topic. Authors have suggested groups I, VII and even IV over the years. Others opt from removing H from the main body of the table, along with He. The official journal of IUPAC, called Chemistry International, has been running some articles and comments on this issue.

See http://iupac.org/publications/ci/2003/2506/ud.html for an article by Peter Atkins and Herb Kaesz suggesting that H should be removed from the main body of the table. See also http://iupac.org/publications/ci/2004/2603/ud2_scerri.html for a criticism of this view. Any comments from list members ?

regards, Eric Scerri