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  • Why does K⁺ have 0 valence electrons? - Chemistry Stack Exchange
    K+ is isoelectronic with Cl- and Ar, but due to the positive charge it is literally impossible to get K+ to share or give up its 3s electrons (except in the plasma phase), so they are not "bonding" or "valence" electrons
  • If concentration of K+ ions inside the cell is almost equal to . . .
    Through active transport, the Na+ K + pump moves K+ and Na+ through the plasma membrane against their concentration gradients Potassium ions are transported into the cell, increasing the concentration of K + inside the cell, and Na + are transported out of the cell, increasing the concentration of Na + outside the cell
  • Which has a greater atomic radius, Cl- , K+ , S-2 , Ca+2 , Ar?
    Think of it this way: 1) Count the electrons (all of them) in each atom or ion 2) What happens to the orbitals, and thus to atoms or ions with a given number of electrons (let us say, 18 electrons), when you increase the atomic number of the element (more protons in the nucleus)?
  • Radius of Ag+ and K+ - Chemistry Stack Exchange
    According to the database of ionic radius Database of ionic radius The ionic radius of silver(I) cation is totally smaller than potassium(I), regardless of their coordination number It seems quite
  • Do K+ and F- ions have the same ionic radii? [closed]
    Since fluorine and potassium form ions to gain the electronic configuration of neon and argon respectively, then shouldn’t $\\ce{K+}$ have a greater radius, as argon is larger than neon? Also which
  • Ionization energy comparison between K+ and Cl-
    In one case you have 17 protons in the nucleus pulling all these electrons together, in the other 19 It is obvious that the $\ce {K+}$ nucleus will be pulling harder, and hence has the higher ionization energy You can safely predict that the ionization energy of $\ce {Ar}$ will be in between both values
  • Electrolysis involving K+ and Li+ ions - Chemistry Stack Exchange
    Who says K+ ions are stronger oxidants? It might seem so according to standard electrode potentials, but those only apply to water solutions
  • Why is the radius of hydrated Na+ greater than that of hydrated K+?
    Although $\ce {Na+}$ has ionic radius of 95 pm and an atomic weight of 23, and $\ce {K+}$ has ionic radius of 133 pm and an atomic weight of 39, hydrated $\ce {Na+}$ is larger than hydrated $\ce {K+}$: This is evident from observing that $\ce {Na+}$ moves through a cell membrane with greater difficulty than $\ce {K+} $
  • Is equilibrium potential for K+ always ~-90 mV?
    Equilibrium potential is the difference in charge relative to the inside of the cell -90 mV means that the inside of a cell is more negative than the outside However when you talk about equilibrium
  • What is the hydrated diameter of a lithium ion？
    When salts dissolve in water, the anions, cations, and strongly polar water molecules undergo hydration reactions, resulting in the formation of hydrated ions with a specific number of coordinated





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