The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 79
... atoms of elements vary regularly throughout the periodic system . Thus , the effective bonding radius ( or one - half the distance between adjacent atoms ) in the elementary substances in their crystalline or molecular forms decreases ...
... atoms of elements vary regularly throughout the periodic system . Thus , the effective bonding radius ( or one - half the distance between adjacent atoms ) in the elementary substances in their crystalline or molecular forms decreases ...
Page 80
... atoms hold their quota of electrons strongly , have no affinity for more electrons , and have little tendency to share electrons with other atoms . An element close to a noble gas in the periodic system , on the other hand , is reactive ...
... atoms hold their quota of electrons strongly , have no affinity for more electrons , and have little tendency to share electrons with other atoms . An element close to a noble gas in the periodic system , on the other hand , is reactive ...
Page 506
... atoms or into atoms and atomic ions . Again , collision of electrons and photons with molecules may cause ioniza- tion , producing molecular ions . In general , the reaction rate for inelastic collisions is similar to that of chemical ...
... atoms or into atoms and atomic ions . Again , collision of electrons and photons with molecules may cause ioniza- tion , producing molecular ions . In general , the reaction rate for inelastic collisions is similar to that of chemical ...
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