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Group 1

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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.

  • 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.

  • What is the first element in the periodic table with ionization energy?

  • For chemistry students and teachers: The tabular chart on the right is arranged by Ionization energy. The first chemical element is Cesium and the last one is Helium. The unity for ionization energy is eV. Please note that the elements do not show their natural relation towards each other as in the Periodic system.

  • What is the unity for ionization energy?

  • The unity for ionization energy is eV. Please note that the elements do not show their natural relation towards each other as in the Periodic system. There you can find the metals, semi-conductor (s), non-metal (s), inert noble gas (ses), Halogens, Lanthanoides, Actinoids (rare earth elements) and transition metals.

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