The New Encyclopaedia Britannica, Volume 23Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 141
... atomic nucleus . In atoms of alkali metals such as sodium and potassi- um , there are two components called dou- blets , and of alkaline earths , three compo- nents called triplets . Atoms of the alkali metals have only one electron ...
... atomic nucleus . In atoms of alkali metals such as sodium and potassi- um , there are two components called dou- blets , and of alkaline earths , three compo- nents called triplets . Atoms of the alkali metals have only one electron ...
Page 234
... atoms of hydrogen ( H ) as atoms of carbon ( C ) . An empirical formula conveys no information about the existence of molecules or the ways in which the atoms are bonded together . Molecular formulas , such as C2H4 and C3H6 for ethylene ...
... atoms of hydrogen ( H ) as atoms of carbon ( C ) . An empirical formula conveys no information about the existence of molecules or the ways in which the atoms are bonded together . Molecular formulas , such as C2H4 and C3H6 for ethylene ...
Page 277
... atoms were able to absorb the energy of the electrons only when it reached a certain critical value , indicating that within the gas atoms themselves the atomic electrons make an abrupt transition to a discrete higher ener- gy level ...
... atoms were able to absorb the energy of the electrons only when it reached a certain critical value , indicating that within the gas atoms themselves the atomic electrons make an abrupt transition to a discrete higher ener- gy level ...
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