Chromium (Cr) 24.26mm Metal Disc 99.99% Pure for Collection or Experiments

Description

• Each disc measures 24.26 mm x 1.75 mm
• Precision machined from high purity metal, ground surfaces, and laser etched labels
• Size of US Quarter

Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard and brittle metal[4] which takes a high polish, resists tarnishing, and has a high melting point. Chromium is remarkable for its magnetic properties: it is the only elemental solid which shows antiferromagnetic ordering at room temperature (and below). Above 38 C, it changes to paramagnetic. -Wikipedia Quarter not included

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