Difference between revisions of "Dictionary:Z/A/en"

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{{DISPLAYTITLE:Dictionary:''Z/A''}}
 
 
{{#category_index:Z|''Z/A''}}
 
{{#category_index:Z|''Z/A''}}
 
The ratio of atomic number ''Z'' to atomic weight ''A'' and, hence, proportional to the ratio of electron density (as measured by the density log) to mass density. <b>Apparent density</b> equals true density where ''Z''/''A''=1/2, which is closely approximated for many minerals (e.g., quartz, calcite, anhydrite, dolomite). The apparent density is larger than the true density when ''Z''/''A''&#x003E;1/2 (e.g., gypsum, oil, 110% for water), smaller when ''Z''/''A''&#x003C;1/2 (e.g., salt).
 
The ratio of atomic number ''Z'' to atomic weight ''A'' and, hence, proportional to the ratio of electron density (as measured by the density log) to mass density. <b>Apparent density</b> equals true density where ''Z''/''A''=1/2, which is closely approximated for many minerals (e.g., quartz, calcite, anhydrite, dolomite). The apparent density is larger than the true density when ''Z''/''A''&#x003E;1/2 (e.g., gypsum, oil, 110% for water), smaller when ''Z''/''A''&#x003C;1/2 (e.g., salt).

Latest revision as of 11:09, 16 March 2020

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The ratio of atomic number Z to atomic weight A and, hence, proportional to the ratio of electron density (as measured by the density log) to mass density. Apparent density equals true density where Z/A=1/2, which is closely approximated for many minerals (e.g., quartz, calcite, anhydrite, dolomite). The apparent density is larger than the true density when Z/A>1/2 (e.g., gypsum, oil, 110% for water), smaller when Z/A<1/2 (e.g., salt).