moomoo513 moomoo513
  • 02-03-2017
  • Chemistry
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I need the answer to this problem

I need the answer to this problem class=

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OKDragon
OKDragon OKDragon
  • 02-03-2017
1. Mendeleev arranged the elements in order of relative atomic mass.
2. Elements with the same properties are arranged in the same column while elements with the same number of electron shells are arranged in the same row
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