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actinium

"From actinium (1003+) on the ejection speed increases until, in tomium (1004f) it is exactly 186,330 miles per second." [Russell, The Universal One, Book 02 - Chapter 17 - Expressions of Gravitation and Radiation]

See Also

Table of the Elements

Page last modified on Sunday 21 of July, 2013 04:49:00 MDT