jonathan kemp periodic https://xxn.org.uk/ 2026-10-25T05:37:33+00:00 jonathan kemp https://xxn.org.uk/ https://xxn.org.uk/lib/tpl/dokuwiki/images/favicon.ico text/html 2014-01-19T10:18:36+00:00 Anonymous (anonymous@undisclosed.example.com) periodic:processor_elements https://xxn.org.uk/doku.php?id=periodic:processor_elements&rev=1390148316 The 54 periodic elements used in processors to 2005/6 (via chief IBM IC developer) * 83-BISMUTH - MH-20g JK-100g * 78-PLATINUM * 77-IRIDIUM * 75-rhenium * 74-TUNGSTEN JK * 73-TANTALUM - MH-5g * 72-HAFNIUM - MH-11g JK * 70-Ytterbium *