Old­est pe­ri­odic ta­ble dis­cov­ered

Timeless Travels Magazine - - ARCHAEOLOG­ICAL NEWS -

Ape­ri­odic ta­ble dis­cov­ered at the Univer­sity of St An­drews is thought to be the old­est in the world. The chart of el­e­ments, dat­ing from 1885, was dis­cov­ered in the Univer­sity’s School of Chem­istry in 2014 by Dr Alan Aitken dur­ing a clear out. Within the col­lec­tion was a large, ex­tremely frag­ile pe­ri­odic ta­ble that flaked upon han­dling. Sug­ges­tions that the dis­cov­ery may be the ear­li­est sur­viv­ing ex­am­ple of a class­room pe­ri­odic ta­ble in the world meant the doc­u­ment re­quired ur­gent at­ten­tion to be au­then­ti­cated, re­paired and re­stored.

Men­deleev made his fa­mous dis­clo­sure on pe­ri­od­ic­ity in 1869, and while the newly un­earthed ta­ble was sim­i­lar, it was not iden­ti­cal to Men­deleev’s sec­ond ta­ble of 1871. The St An­drews ta­ble was clearly an early spec­i­men.

The large and ex­tremely frag­ile pe­ri­odic ta­ble was con­tained in a stash of rolled up teach­ing charts

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