Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3752Chemical news office., 1932 |
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Strona 167
... period 1923-30 and later , during 1930-1 , as general sales manager , has been notably successful in chemical industry since the conclusion of his scientific investigations at Mellon Insti- tute in Pittsburgh . He has devised and ...
... period 1923-30 and later , during 1930-1 , as general sales manager , has been notably successful in chemical industry since the conclusion of his scientific investigations at Mellon Insti- tute in Pittsburgh . He has devised and ...
Strona 170
... periods , from Li to Cl of all elements with odd atomic number , are in the series 4n + 2 and 4n + 3 , while the isotopes in the next two periods , from K to Cs , of all the odd numbered elements into series 4n + 1 and 4n + 3 , the only ...
... periods , from Li to Cl of all elements with odd atomic number , are in the series 4n + 2 and 4n + 3 , while the isotopes in the next two periods , from K to Cs , of all the odd numbered elements into series 4n + 1 and 4n + 3 , the only ...
Strona 171
... periods of the heavy metals from 23 V to 31 Ga , from 41 Cb to 49 In , and from 73 Ta to 81 Tl . as well as the beginning and end of each period . The reason of the tri - valency of the rare earth becomes likewise evident , as there are ...
... periods of the heavy metals from 23 V to 31 Ga , from 41 Cb to 49 In , and from 73 Ta to 81 Tl . as well as the beginning and end of each period . The reason of the tri - valency of the rare earth becomes likewise evident , as there are ...
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