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Question

Define pure elements.


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Solution

Pure Elements:

  • Pure elements have one kind of atoms.
  • It has the same atomic number or number of protons.
  • It has one stable isotope.

Examples of Pure Elements:

  • A copperCu wire is 99.9% of its atoms are copper, but it is not isotopically pure since it contains two isotopesCu63 and Cu65.
  • A pure gold Au has both chemically and isotopically pure.

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