Hardness vs. density (for Elements)

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SUMMARY

The discussion centers on the lack of a direct correlation between hardness and density among elements in the periodic table. Participants highlight that atomic lattice structure significantly influences hardness, as exemplified by diamond, which is extremely hard yet low in density. The suggestion to create a scatter plot of 20 random elements reinforces the conclusion that dense materials like gold and lead can be soft, while mercury, a liquid metal, further illustrates the complexity of these properties.

PREREQUISITES
  • Understanding of atomic lattice structure
  • Familiarity with the periodic table of elements
  • Basic knowledge of material properties (hardness and density)
  • Experience with data visualization techniques, such as scatter plots
NEXT STEPS
  • Research atomic lattice structures and their impact on material properties
  • Explore the properties of diamond and its applications in various industries
  • Learn about the physical properties of metals, focusing on gold and lead
  • Investigate data visualization tools for creating scatter plots of element properties
USEFUL FOR

Material scientists, chemists, educators, and students interested in the relationships between physical properties of elements and their applications in various fields.

jmatejka
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I heard someone suggest a correlation between the two, my guess is NO direct correlation exists.

Pick an Element on the periodic table, hardness and density do not always correlate. I'm sure atomic lattace structure plays a larger role here.

Diamond is the hardest, but by no means high in density.

Any loose correlations between hardness and density? None that I know of...

Thanks, John
 
Last edited:
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Why not pick 20 elements at random and make a scatter plot?
 
ya those 2 definitely do not correlate gold and lead are very dense and very soft .
you cab bite into 24k gold and leave a tooth mark. And what about mercury.
 

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