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Alkali metals

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  • What family has the lowest ionization energy?

  • What family has the lowest ionization energy? The alkali metals……….. Group 1 of the Periodic Table features metals whose valence electron SINGLY occupies the outermost shell, the valence shell of the given atoms.

  • Which of the following elements has the lowest first ionization energy?

  • Following the trend, it makes sense that the element with the lowest first ionization energy would be the lowest, leftmost element, Francium.

  • Why do alkali metals have the lowest ionization energies?

  • Since the nuclear charge is necessarily diminished with respect to the valence shell, the alkali metals display the lowest ionization energies, and these energies (reasonably) decrease down the Group. But a chemist, a physical scientist should examine the data.

  • Why does ionization energy decrease down the periodic table?

  • If you follow the general trend on the periodic table, you see that ionization energy decreases down a period because as electrons are added to higher octets, the average distance of the electron from the nucleus increases and screening by inner electrons increases.

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