This frequently requested reference chart is available in a durable and colorful print-braille version. The chart comes with either a reference booklet in print or in braille that contains additional tables listing the elements by name, atomic number
Read More...
Read the complete post at http://feedproxy.google.com/~r/FredsHeadCompanion/~3/VXa6wCq-l-E/new-way-to-order-periodic-table.html
Posted
Mar 15 2012, 01:29 AM
by
Fred's Head from APH