Thorium is a chemical element with symbol Th and atomic number 90. A radioactive actinide metal, thorium is one of only two significantly radioactive elements that still occur naturally in large quantities as a primordial element (the other being uranium). It was discovered in 1829 by the Norwegian priest and amateur mineralogist Morten Thrane Esmark and identified by the Swedish chemist Jöns Jacob Berzelius, who named it after Thor, the Norse god of thunder. Wikipedia, Thorium
Russell
"It is also this power of penetration and speed of the 9th octave which not only unlocks the pressures of the lower inert gases, octave by octave, but also unlocks the pressures of the 8th, 7th, 6th and 5th octaves of radioactive elements. Most deadly among these are radium, thorium, actinium, strontium, barium, calcium, potassium, arsenic and phosphorus." [Atomic Suicide, page 262]
See Also
Etheric Vibratory Scale
Table of the Elements - Russell Elements
Thorium Reactor
Chapter 2 - How Radioactivity Kills - part III page 29
Chapter 1 - What Is Atomic Energy - III page 13