anonymous
  • anonymous
can anyone explain to me how to figure this out?
Chemistry
katieb
  • katieb
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anonymous
  • anonymous
Which element listed is more reactive than lithium and magnesium, but less reactive than potassium?
abb0t
  • abb0t
Sodium. you can refer to your periodcic table, and atomic size, availability of it's electron on orbital.
anonymous
  • anonymous
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

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abb0t
  • abb0t
bigger shell, farther away from nucleus. less energy to remove that valence electron from potassium than from sodium, leading to increased reactivity.
anonymous
  • anonymous
okay. =/
aaronq
  • aaronq
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/

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