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cntrywrtr Group Title

can anyone explain to me how to figure this out?

  • one year ago
  • one year ago

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  1. cntrywrtr Group Title
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    Which element listed is more reactive than lithium and magnesium, but less reactive than potassium?

    • one year ago
  2. abb0t Group Title
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    Sodium. you can refer to your periodcic table, and atomic size, availability of it's electron on orbital.

    • one year ago
  3. cntrywrtr Group Title
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    I know the answer. I don't know how to come to that conclusion. And I don't know what you mean by availability of it's electron orbital

    • one year ago
  4. abb0t Group Title
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    bigger shell, farther away from nucleus. less energy to remove that valence electron from potassium than from sodium, leading to increased reactivity.

    • one year ago
  5. cntrywrtr Group Title
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    okay. =/

    • one year ago
  6. aaronq Group Title
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    if you're talking about the metals being elemental (not in a compound) you could look at values for their 1st ionization energies, which would give you quantitative measurement of their ability to lose their valence electron(s). http://www.chemicool.com/ or http://chemreference.com/

    • one year ago
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