The New Encyclopædia Britannica in 30 Volumes: Macropædia : Knowledge in Depth. - 19 Bd, Volumes 1-19Encyclopædia Britannica, 1974 |
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Page 76
... periods of what out of the order of atomic weights . Thus , with three increasing length between the noble gases ; the table thus pairs of elements — argon and potassium , cobalt and nickcontains a period of 2 elements , two periods of ...
... periods of what out of the order of atomic weights . Thus , with three increasing length between the noble gases ; the table thus pairs of elements — argon and potassium , cobalt and nickcontains a period of 2 elements , two periods of ...
Page 77
... period is incomplete . The properties of these elements inthey are arranged , in the order of their atomic numbers , dicate that this period is a second very long period of 32 in seven horizontal periods , with the lanthanons ( lan ...
... period is incomplete . The properties of these elements inthey are arranged , in the order of their atomic numbers , dicate that this period is a second very long period of 32 in seven horizontal periods , with the lanthanons ( lan ...
Page 986
... period of adolescence range of prosimians overlaps that of the anthropoids , means that the young remain under adult ( primarily ma- which is never shorter than 140 days . Tree shrews , for ternal ) surveillance for a long period ...
... period of adolescence range of prosimians overlaps that of the anthropoids , means that the young remain under adult ( primarily ma- which is never shorter than 140 days . Tree shrews , for ternal ) surveillance for a long period ...
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activity America animals appear areas atoms became become body called camera century changes chemical Church colour common complete compounds consists containing continued drugs early effect electrons elements energy example existence experience Family field Figure fins fishes human important increase individual industry islands Italy known later less light liquid living lower major material means ment methods movement natural North occur organic original Peking Pentecostal percent period Persian personality pest Peter petroleum phase Philip philosophy photographs plant political position possible practice present pressure printing problems production Quakers range region remains result rocks similar social South species structure surface temperature theory tion United University usually widely