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  1. Aug 2020
  2. chem.libretexts.org chem.libretexts.org
    2.2: The Elements
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    1. zoebrienne 17 Aug 2020
      There is an element that we need more of in our bodies than is proportionately present in Earth’s crust, and this element is not easily accessible.

      Curious to see phosphorus levels over time from as early as possible. The increase in human population must make phosphorus levels almost minuscule. I'm assuming most animals require phosphorus as well but how much in comparison to humans.

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    chem.libretexts.org/Bookshelves/Introductory_Chemistry/Book:_The_Basics_of_GOB_Chemistry_(Ball_et_al.)/02:_Elements_Atoms_and_the_Periodic_Table/2.02:_The_Elements