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The existence of groups of elements with simi- in which b is a constant having the
value 3645.6 anglar properties , such as lithium , sodium , potassium , rubidi
stroms , and m and n are integers ; specifically , n = 2 um , and cesium or iron ...
Atomic weights of elements with no stable isotope are given as mass numbers ,
in parentheses , of the most stable isotope . name 24 name symbol atomic atomic
symbol atomic atomic number weight number weight Actinium Ac 89 ( 227 ) ...
sing and feedback devices and of decision - making mech- ing to a heating
element or an electric motor . The control anisms , however , remove it
substantially from today's elements regulate the action elements described above
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review